@book{34311,
	author = {Gokhale, K. V. G. K. and ebrary, Inc.},
	title = {Principles of engineering geology},
	publisher = {BS Publications,},
	year = {2008.},
	address = {Hyderabad [India] :},
	url = {http://www.columbia.edu/cgi-bin/cul/resolve?clio8742132}
}