@book{176801,
	author = {Graven, Jacques. and Orriols, María Dolores.},
	title = {El hombre y el animal / },
	publisher = {Plaza & Janés, },
	year = {1970.},
	series = {Enciclopedia horizonte ; },
	address = {Esplugas de Llobregat (Barcelona) : },
	edition = {1ª ed.}
}