@book{184921,
	author = {Zill, Dennis G. and Dewar, Jacqueline M.},
	title = {Algebra y trigonometría},
	publisher = {McGraw-Hill},
	year = {1999.},
	address = {Santa Fé de Bogotá},
	edition = {2a ed. adaptada y actualizada},
	note = {Translation of: Algebra and trigonometry, 2nd ed.}
}