@book{103991,
	author = {Zill, Dennis G. and Dewar, Jacqueline M.},
	title = {Precálculo con avances de cálculo},
	publisher = {McGraw-Hill,},
	year = {c2012},
	address = {México, D.F. :},
	edition = {5 ed.},
	note = {Traducción de: Essentials of precalculus with calculus previews. 5 ed. c2012}
}