Barlow, David M., Tom O’Malley, and Philip Mitchell. The Media in Wales: Voices of a Small Nation. Cardiff: University of Wales Press, 2005. Web. <http://eu.alma.exlibrisgroup.com/view/action/uresolver.do?operation=resolveService&package_service_id=3037233210002418&institutionId=2418&customerId=2415>.
Baverstock, Alison. How to Market Books. 3rd ed. London: Kogan Page, 1999. Print.
Blake, Carole. From Pitch to Publication: Everything You Need to Know to Get Your Novel Published. London: Macmillan, 1999. Print.
Butcher, Judith. Copy-Editing: The Cambridge Handbook for Editors, Authors and Publishers. 3rd ed. Cambridge: Cambridge University Press, 1992. Print.
Clark, Giles N. Inside Book Publishing. 3rd ed. London: Routledge, 2000. Print.
‘Copac National, Academic and Specialist Library Catalogue’. N.p., n.d. Web. <http://copac.ac.uk/>.
‘Cronfa Ddata Enwau Lleoedd Archif Melville Richards’. N.p., n.d. Web. <http://www.e-gymraeg.co.uk/enwaulleoedd/amr/>.
Cule, Cyril P. Cymraeg Idiomatig: Priod-Ddulliau Byw. Y Bontfaen: D. Brown, 1971. Print.
Davies, Elwyn. Cyfarwyddiadau i Awduron. Caerdydd: Gwasg Prifysgol Cymru, 1954. Print.
Davies, Elwyn and University of Wales. Rhestr o Enwau Lleoedd: A Gazetteer of Welsh Place-Names. Trydydd argraffiad. Caerdydd: Gwasg Prifysgol Cymru, 1967. Print.
Eliot, Simon, and Jonathan Rose. A Companion to the History of the Book. Chichester: Wiley-Blackwell, 2009. Print.
Evans, D. Simon. Gramadeg Cymraeg Canol. 3ydd argraffiad. Caerdydd: Gwasg Prifysgol Cymru, 1977. Print.
Evans, H. Meurig, and W. O. Thomas. Y Geiriadur Mawr: The Complete Welsh-English English-Welsh Dictionary. 11th ed. Abertawe: Christopher Davies, 1983. Print.
Feather, John. A History of British Publishing. 2nd ed. London: Routledge, 2006. Web. <http://eu.alma.exlibrisgroup.com/view/action/uresolver.do?operation=resolveService&package_service_id=3037306530002418&institutionId=2418&customerId=2415>.
‘Geiriadur Prifysgol Cymru =: A Dictionary of the Welsh Language’. (1950): n. pag. Print.
‘Geiriadur Yr Academi’. N.p., n.d. Web. <http://www.geiriaduracademi.org/?page_id=54>.
Great Britain and Council for the Welsh Language (Great Britain). Cyhoeddi Yn Yr Iaith Gymraeg: Adroddiad i...John Morris, Ysgrifennydd Gwladol Cymru =Publishing in the Welsh Language ; a Report to John Morris, Secretary of State for Wales. Cardiff: H.M.S.O., 1978. Print.
Griffiths, Bruce, Dafydd Glyn Jones, and Welsh Academy. The Welsh Academy English-Welsh Dictionary: Geiriadur Yr Academi. Cardiff: Gwasg Prifysgol Cymru, University of Wales Press, 1995. Print.
Hall, Frania. The Business of Digital Publishing: An Introduction to the Digital Book and Journal Industries. London: Taylor & Francis Ltd, 2013. Print.
Hart, Horace. Hart’s Rules for Compositors and Readers at the University Press, Oxford. 39th completely rev. ed. Oxford: Oxford University Press, 1983. Print.
Hinton, Sam, and Larissa Hjorth. Understanding Social Media. London: California. Print.
Huws, Gwilym, Jane Del-Pizzo, and Greg Stevenson. Arolwg o’r Diwydiant Cyhoeddi Yng Nghymru =: A Survey of the Publishing Industry in Wales. Aberystwyth: Canolfan y Llyfr, 2002. Print.
Ifans, Rhiannon. Y Golygiadur: Llawlyfr i Awduron a Golygyddion. Aberystwyth: Cymdeithas Lyfrau Ceredigion, 2006. Print.
Jenkins, Ann Ffrancon. Gweddw Dawn Heb Grefft: Addysg a Hyfforddiant Ar Gyfer Gweithlu’r Diwydiant Cyhoeddi Yng Nghymru. N.p., 1999. Print.
Jenkins, Geraint H. Literature, Religion and Society in Wales, 1660-1730. Studies in Welsh history. Cardiff: University of Wales Press [for] the History and Law Committee of the Board of Celtic Studies, 1978. Print.
Jones, Morgan D. Cywiriadur Cymraeg. Trydydd argraffiad. Llandysul: Gwasg Gomer, 1980. Print.
---. Termau Iaith a Llên. Llandysul: Gwasg Gomer, 1972. Print.
Jones, Philip Henry et al. A Nation and Its Books: A History of the Book in Wales. Aberystwyth: National Library of Wales, 1998. Print.
Jones, R  E. Llyfr o Idiomau Cymraeg. Abertawe: Gwasg John Penry, 1975. Print.
Jones, R. E. Ail Lyfr o Idiomau Cymraeg. Abertawe: Tŷ John Penry, 1987. Print.
Lewis, Ceri W. and University of Wales. Orgraff Yr Iaith Gymraeg: Rhan 2: Geirfa ; Golygwyd Gan Ceri W. Lewis. 3 argraffiad. Caerdydd: Gwasg Prifysgol Cymru, 1987. Print.
Lewis, D. Geraint. Pa Arddodiad?: A Check-List of Verbal Prepositions. Llandysul: Gwasg Gomer, 2000. Print.
---. Y Llyfr Berfau: A Check-List of Welsh Verbs. Llandysul: Gomer, 1995. Print.
---. Y Treigladur: A Check-List of Welsh Mutations. Arg. newydd. Llandysul: Gomer, 1996. Print.
Mackenzie, Janet. The Editor’s Companion. 2nd ed. Cambridge: Cambridge University Press, 2011. Print.
Morgan, T. J. Y Treigladau a’u Cystrawen. Caerdydd: Gwasg Prifysgol Cymru, 1952. Print.
Nelson-Field, Karen. Viral Marketing: The Science of Sharing. Ed. Byron Sharp. Melbourne: Oxford University Press Australia, 2013. Print.
New Oxford Style Manual. [2nd] ed. Oxford: Oxford University Press, 2012. Print.
Parry-Williams, T. H. Elfennau Barddoniaeth. Pumed argraffiad. Caerdydd: Gwasg Prifysgol Cymru, 1965. Print.
Rees, Eiluned. The Welsh Book Trade before 1820. Aberystwyth: National Library of Wales, 1988. Print.
Ritter, R. M., R. M. Ritter, and R. M. Ritter. The Oxford Style Manual. Oxford: Oxford University Press, 2003. Print.
Russell, Kate. Working the Cloud: Making the Internet Work for You & Your Business. Richmond: Crimson, 2013. Print.
Smith, Kelvin. The Publishing Business: From p-Books to e-Books. Lausanne, Switzerland: AVA Academia, 2012. Print.
Squires, C. Marketing Literature: The Making of Contemporary Writing in Britain. 1st ed. 2007. London: Palgrave Macmillan UK, 2007. Web. <https://eu.alma.exlibrisgroup.com/view/action/uresolver.do?operation=resolveService&amp;package_service_id=4606135400002418&amp;institutionId=2418&amp;customerId=2415>.
Thomas, Gwyn. Ymarfer Ysgrifennu Cymraeg. Talybont: Lolfa, 2012. Print.
Thomas, Peter Wynn. Gramadeg y Gymraeg. Caerdydd: Gwasg Prifysgol Cymru, 1996. Print.
University of Wales. Orgraff Yr Iaith Gymraeg: Rhan 1: Adroddiad ; Pwyllgor Iaith a Llên Bwrdd Gwybodau Celtaidd Prifysgol Cymru. 3 argraff. Caerdydd: Gwasg Prifysgol Cymru, 1987. Print.
Walters, Mair Angharad. Argraffu, Cyhoeddi a Llyfrwerthu Yng Nghaerfyrddin, 1840-1890. N.p., 1997. Print.
Williams, Stephen J. Elfennau Gramadeg Cymraeg. Ail argraffiad. Caerdydd: Gwasg Prifysgol Cymru, 1980. Print.