APA (7th ed.) Zitazioa
(1923). Vocational Education Department. Special Studies.
Chicago Style (17th ed.) Zitazioa
Vocational Education Department. Special Studies. Ann Arbor, 1923.
MLA (9th ed.) Zitazioa
Vocational Education Department. Special Studies. 1923.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.