APA (7th ed.) Zitazioa
Fagan, B. M. (1995). People of the earth: An introduction to world prehistory (8th. ed.). Harper & Row.
Chicago Style (17th ed.) Zitazioa
Fagan, Brian M. People of the Earth: An Introduction to World Prehistory. 8th. ed. New York: Harper & Row, 1995.
MLA (9th ed.) Zitazioa
Fagan, Brian M. People of the Earth: An Introduction to World Prehistory. 8th. ed. Harper & Row, 1995.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.