Spencer, R. F. (1965). The native Americans: Prehistory and ethnology of the North American Indians. Harper and Row.
Citazione stile Chigago Style (17a edizione)Spencer, Robert F. The Native Americans: Prehistory and Ethnology of the North American Indians. New York: Harper and Row, 1965.
Citatione MLA (9a ed.)Spencer, Robert F. The Native Americans: Prehistory and Ethnology of the North American Indians. Harper and Row, 1965.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.