APA (7th ed.) Zitazioa
Ferguson, R. B. (1972). The middle Cumberland culture. Vanderbilt University.
Chicago Style (17th ed.) Zitazioa
Ferguson, Robert B. The Middle Cumberland Culture. Nashville, Tennessee: Vanderbilt University, 1972.
MLA (9th ed.) Zitazioa
Ferguson, Robert B. The Middle Cumberland Culture. Vanderbilt University, 1972.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.