@book{23191,
	author = {Tan, S. T.},
	title = {Calculus /},
	publisher = {Brooks/Cole Cengage learning,},
	year = {c2010.},
	address = {Belmont, CA :},
	note = {Includes index.},
	url = {http://www.loc.gov/catdir/enhancements/fy1215/2009921550-d.html}
}