@book{36771,
	author = {Bouthoul, Gaston. and Frontera, Guillem.},
	title = {Biología social / },
	publisher = {Oikos-Tau, },
	year = {[1971]},
	series = {¿Qué sé? ; },
	address = {Barcelona : },
	edition = {1ª ed.}
}