APA (7th ed.) Zitazioa
Robertson, D. (1963). Pre-columbian architecture. George Braziller.
Chicago Style (17th ed.) Zitazioa
Robertson, Donald. Pre-columbian Architecture. New York: George Braziller, 1963.
MLA (9th ed.) Zitazioa
Robertson, Donald. Pre-columbian Architecture. George Braziller, 1963.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.