@book{9920,
	author = {Mathur , Rajiv.},
	title = {DOS quick reference guide},
	publisher = {Galgota pub},
	year = {1989.},
	address = {[India] :},
	edition = {3rd ed.},
	url = {http://www.amazon.com/exec/obidos/ASIN/chopaconline-20}
}