Atkinson, John. 2007. The Mechanics of Soils and Foundations. 2nd ed. Taylor & Francis.
British Standards Institution. n.d. Code of Practice for Site Investigations. Fourth edition. BS. Code of practice for site investigations.
BS 5930:1999+A2:2010. n.d. BSI.
Craig, R. F., and R. F. Craig. 2004. Craig’s Soil Mechanics. 7th ed. Spon Press.
Knappett, Jonathan, and R. F. Craig. 2012. Craig’s Soil Mechanics. 8th ed. Spon.
Norbury, David and ebrary, Inc. 2010. Soil and Rock Description in Engineering Practice. Whittles Pub. Electronic resource. http://site.ebrary.com/lib/aber/Doc?id=10698308.
Price, Michael. 1996. Introducing Groundwater. 2nd ed. Chapman & Hall.
Waltham, Tony. 1994. Foundations of Engineering Geology. Blackie Academic & Professional.
