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2.
Waltham, T. Foundations of engineering geology. (Spon Press, 2009).
3.
Knappett, J. & Craig, R. F. Craig’s soil mechanics. (Spon, 2012).
4.
Minnick, R. The surveying handbook: [Volume I]. (Springer Science+Business Media, B.V., 1995).
5.
Smithson, P., Addison, K. & Atkinson, K. Fundamentals of the physical environment. (Routledge, 2008).
6.
Grotzinger, J. P. & Jordan, T. H. Understanding Earth. (W.H. Freeman and Company, a Macmillan Higher Education Company, 2014).
7.
British geological survey (BGS).
8.
U.S. geological survey.
9.
Brinker, R. C. & Minnick, R. The surveying handbook. (Van Nostrand Reinhold, 1987).