@book{10962,
	author = { Patra, Nihar Ranjan.	},
	title = {Advance Geotechnological Engineering ( Pdf Lecture Module 40)},
	publisher = {; Indian Institute of Technology , Kanpur.},
	address = {IIT Kanpur.},
	url = {http://nptel.ac.in/courses/105104132/Module6/lecture40.pdf}
}