APA (7th ed.) Zitazioa
Gann, T. (1929). Discoveries and adventures in Central America. Charles Scribner´s Sons.
Chicago Style (17th ed.) Zitazioa
Gann, Thomas. Discoveries and Adventures in Central America. New York: Charles Scribner´s Sons, 1929.
MLA (9th ed.) Zitazioa
Gann, Thomas. Discoveries and Adventures in Central America. Charles Scribner´s Sons, 1929.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.