@book{6578,
	author = {Boylestad, Robert L. and Martínez Sarmiento, Miguel Angel, },
	title = {Análisis introductorio de circu' tos / },
	publisher = {Prentice-Hall Hispanoamerica, },
	year = {1998.},
	address = {México : },
	edition = {8a ed.}
}