@book{2936,
	author = {Bali, N.P},
	title = {Co-ordinate Geometry: golden math series},
	publisher = {Laxmi Publications,},
	year = {1992.},
	address = {New Delhi},
	url = {http://www.amazon.com/exec/obidos/ASIN/817008041X/chopaconline-20}
}