Não informado. (1961). The Humanist Educator. American Personnel and Guidance Association.
Chicago-Zitierstil (17. Ausg.)Não informado. The Humanist Educator. Falls Church, Va: American Personnel and Guidance Association, 1961.
MLA-Zitierstil (8. Ausg.)Não informado. The Humanist Educator. American Personnel and Guidance Association, 1961.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.