Friedl, J. (1977). Anthropology: The study of people. Harper & Row.
Chicago Style aipamenaFriedl, John. Anthropology: The Study of People. New York: Harper & Row, 1977.
MLA aipamenaFriedl, John. Anthropology: The Study of People. Harper & Row, 1977.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.