@book{18109,
	author = {Roy, Debasis },
	title = {Engineering Geology:},
	publisher = {Indian Insitiute of Technology},
	address = {Kharagpur},
	url = {http://video.snu.edu.in/index.php?id=455&cat=Civil Engineering&course=Engineering Geology&url=Phase1_Video/105105106/lec02.mp4}
}