(2011). Anthropology: The human challenge. Wadsworth.
Chicago Style (17th ed.) ZitazioaAnthropology: The Human Challenge. Belmont: Wadsworth, 2011.
MLA (9th ed.) ZitazioaAnthropology: The Human Challenge. Wadsworth, 2011.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.