@book{10909,
	author = { Patra,Nihar Ranjan.},
	title = {Advance Geotechnological Engineering ( Pdf Lecture Module3)},
	publisher = {Indian Institute of Technology, Kanpur.},
	address = {IIT Kanpur.},
	url = {http://nptel.ac.in/courses/105104132/Module1/Lecture3.pdf}
}