APA (7th ed.) Zitazioa
National Society for the Study of Education. Commite on Education for the Professions. (1965). Vocational education.
Chicago Style (17th ed.) Zitazioa
National Society for the Study of Education. Commite on Education for the Professions. Vocational Education. 1965.
MLA (9th ed.) Zitazioa
National Society for the Study of Education. Commite on Education for the Professions. Vocational Education. 1965.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.