@book{22530,
	author = {Spiegel, Murray R. and Liu, John},
	title = {Fórmulas y Tablas de Matemáticas Aplicada /},
	publisher = {Interamericana,},
	year = {2005.},
	series = {Compendio Schaum},
	address = {Madrid :},
	edition = {2.}
}