APA (7th ed.) Zitazioa
Educational Psychology Monographs & Whipple, G. M. Educational Psychology Monographs.
Chicago Style (17th ed.) Zitazioa
Educational Psychology Monographs eta Guy Montrose Whipple. Educational Psychology Monographs.
MLA (9th ed.) Zitazioa
Educational Psychology Monographs eta Guy Montrose Whipple. Educational Psychology Monographs.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.