APA (7th ed.) Zitazioa
Stark, N. (1975). The formula book. Sheed and award inc.
Chicago Style (17th ed.) Zitazioa
Stark, Norman. The Formula Book. Kansas: Sheed and award inc, 1975.
MLA (9th ed.) Zitazioa
Stark, Norman. The Formula Book. Sheed and award inc, 1975.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.