@book{16351,
	author = {Swokowski, Earl William, and Swokowski, Earl William,},
	title = {Precalculus :},
	publisher = {Prindle, Weber & Schmidt,},
	year = {c1987.},
	address = {Boston :},
	edition = {5th ed.},
	note = {Rev. ed. of: Functions and graphs. 4th ed. c1984.}
}