APA (7th ed.) Zitazioa

(1917). Organizing kindergartens in city school systems.

Chicago Style (17th ed.) Zitazioa

Organizing Kindergartens in City School Systems. 1917.

MLA (9th ed.) Zitazioa

Organizing Kindergartens in City School Systems. 1917.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.