@book{87941,
	author = {Segerberg, Osborn.},
	title = {La advertencia ecológica.},
	publisher = {Barral Editores,},
	year = {1974.},
	series = {Breve biblioteca de respuésta},
	address = {Barcelona :},
	note = {Translation of Where have all the flowers, fishes, birds, trees, water and air gone?}
}