@book{6412,
	author = {Narayan, Shanti. and Kapur, J. N.},
	title = {A textbook of vector calculus /},
	publisher = {S Chand & Co Ltd,},
	year = {1987.},
	address = {[S.l.] :},
	edition = {4th ed.},
	url = {http://www.amazon.com/exec/obidos/ASIN/8121901618/chopaconline-20}
}