@book{6711,
	author = {Zill, Dennis G., and Wright, Warren S.},
	title = {Calculus :},
	publisher = {Jones and Bartlett Publishers,},
	year = {c2011.},
	series = {The Jones and Bartlett Publishers series in mathematics.},
	address = {Singapore :},
	edition = {4th ed.},
	note = {Includes Index.}
}