@book{30802,
	author = {Agrawal, P.N.},
	title = {Mathematics III:},
	publisher = {Indian Insitiute of Technology},
	address = {Roorkee},
	url = {http://video.snu.edu.in/index.php?id=4993&cat=Basic courses(Sem 1 and 2)&course=Mathematics III&url=Phase1_Video/122107037/mod02lec14.mp4}
}