Não informado. (1929). Journal of Adult Education. American Association for Adult Education.
Chicago-Zitierstil (17. Ausg.)Não informado. Journal of Adult Education. New York: American Association for Adult Education, 1929.
MLA-Zitierstil (8. Ausg.)Não informado. Journal of Adult Education. American Association for Adult Education, 1929.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.