@book{67,
	author = {Stewart, James,},
	title = {Single variable calculus :},
	publisher = {Brooks/Cole Cengage Learning,},
	year = {c2012.},
	address = {Australia ;},
	edition = {7th ed., Student ed.},
	note = {Includes index.},
	url = {http://www.loc.gov/catdir/enhancements/fy1215/2010936598-d.html}
}