The Expanding Circlede Peter Singer5.0 · 1 votosMateriasSociobiologyScience, moral and ethical aspectsEdiciones (1)The Expanding Circle (1981)Farrar Straus & Giroux · ISBN 9780374151126Más obras de Peter SingerThe Ethics of What We EatA Companion to ethicsScience, Society, and the SupermarketSatu Bumi