@book{Allenby_1991, address={London}, edition={2nd ed}, title={Rings, fields and groups: an introduction to abstract algebra}, publisher={Edward Arnold}, author={Allenby, R. B. J. T.}, year={1991} }
@book{Carter_ebrary, Inc_2009, address={[Washington, D.C.]}, title={Visual group theory}, volume={Classroom resource materials}, url={http://site.ebrary.com/lib/aber/Doc?id=10722442}, publisher={Mathematical Association of America}, author={Carter, Nathan C. and ebrary, Inc}, year={2009} }
@book{Humphreys_1996, address={Oxford}, title={A course in group theory}, volume={Oxford science publications}, publisher={Oxford University Press}, author={Humphreys, J. F.}, year={1996} }
@book{Scott_1987, address={New York}, title={Group theory}, publisher={Dover}, author={Scott, William R.}, year={1987} }
