Brinker, Russell C., and Roy Minnick. The Surveying Handbook. New York: Van Nostrand Reinhold, 1987. Print.
‘British Geological Survey (BGS)’. N.p., n.d. Print.
Grotzinger, John P., and Thomas H. Jordan. Understanding Earth. 7th edition. New York: W.H. Freeman and Company, a Macmillan Higher Education Company, 2014. Print.
Kavanagh, Barry F., and Tom B. Mastin. Surveying: Principles and Applications. Ninth edition, International edition. Boston: Pearson, 2014. Print.
Knappett, Jonathan, and R. F. Craig. Craig’s Soil Mechanics. 8th ed. London: Spon, 2012. Web. <http://lib.myilibrary.com/browse/open.asp?id=352526&entityid=https://idp.brunel.ac.uk/entity>.
Minnick, Roy. The Surveying Handbook: [Volume I]. Ed. Russell C. Brinker. Second edition. Dordrecht, Netherlands: Springer Science+Business Media, B.V., 1995. Print.
Smithson, Peter, Kenneth Addison, and K. Atkinson. Fundamentals of the Physical Environment. 4th ed. London: Routledge, 2008. Web. <http://lib.myilibrary.com/browse/open.asp?id=460015&entityid=https://idp.brunel.ac.uk/entity>.
‘U.S. Geological Survey’. N.p., n.d. Print.
Waltham, Tony. Foundations of Engineering Geology. 3rd ed. Abingdon, UK: Spon Press, 2009. Print.
