APA (7th ed.) Zitazioa
Service, E. R. (1968). Primitive social organization: An evolutionary perspective. Random House.
Chicago Style (17th ed.) Zitazioa
Service, Elman R. Primitive Social Organization: An Evolutionary Perspective. New York: Random House, 1968.
MLA (9th ed.) Zitazioa
Service, Elman R. Primitive Social Organization: An Evolutionary Perspective. Random House, 1968.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.