@book{15050,
	author = {Simpson, George Gaylord and Calvelo, José Manuel},
	title = {El sentido de la evolución},
	publisher = {Eudeba},
	year = {1987},
	series = {Lectores de Eudeba},
	address = {Buenos Aires},
	edition = {7ª ed.},
	note = {Contiene al final del libro un índice alfabético}
}