@book{9555,
	author = {Han, M. Y. and Sebastián Franco, José Luis.},
	title = {La Vida secreta de los cuantos },
	publisher = {McGraw-Hill, },
	year = {D.L. 1991.},
	series = {Serie McGraw-Hill de divulgación científica},
	address = {Madrid [etc.] : }
}