Não informado. (1942). Adult Education Journal. American Association for Adult Education.
Chicago-referens (17:e uppl.)Não informado. Adult Education Journal. New York: American Association for Adult Education, 1942.
MLA-referens (8:e uppl.)Não informado. Adult Education Journal. American Association for Adult Education, 1942.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.