@book{15280,
	author = { Martínez Sanz, José Luis.  and González Martín, Ana María. },
	title = {Darwin /  },
	publisher = {Edimat Libros,},
	year = {2004},
	series = {Grandes biografías},
	address = {Madrid :  },
	note = { En la carátula : Charles Darwin. }
}