@book{34366,
	author = {Swokowski, Earl William, 1926- and Cole, Jeffery A. (Jeffery Alan), 1955-},
	title = {Algebra and trigonometry },
	publisher = {Brooks/Cole Cengage Learning},
	year = {c2012},
	address = {Belmont, Calif.},
	edition = {13th ed.}
}