@book{4579,
	author = {Nayak, P. K.},
	title = {Text Book of Tensor Calculus and Differential Geometry },
	publisher = {PHI Learning,},
	year = {2012.},
	address = {[S.l.] :},
	url = {http://www.amazon.com/exec/obidos/ASIN/812034507X/chopaconline-20}
}