@book{529109,
	author = {Swokowski, Earl William, and Olinick, Michael.},
	title = {Calculus /},
	publisher = {National Book Foundation,},
	year = {c1994.},
	address = {Islamabad :},
	edition = {6th ed.},
	note = {Includes index.},
	url = {http://www.loc.gov/catdir/enhancements/fy1505/93035389-t.html}
}