@book{50638,
	author = {Grady, Michael D., and Wooton, William.},
	title = {Precalculus /},
	publisher = {Wadsworth Pub. Co.,},
	year = {c1984.},
	address = {Belmont, Calif. :},
	edition = {2nd ed.},
	note = {Includes index.}
}