APA (7th ed.) Zitazioa

Ladd, E. C. (1975). The divided academy. Norton.

Chicago Style (17th ed.) Zitazioa

Ladd, Everett Carll. The Divided Academy. NewYork: Norton, 1975.

MLA (9th ed.) Zitazioa

Ladd, Everett Carll. The Divided Academy. Norton, 1975.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.