American Association for Adult and Continuing Education. (1989). Adult learning. American Association for Adult & Continuing Education.
Chicago-referens (17:e uppl.)American Association for Adult and Continuing Education. Adult Learning. Washington, D.C.: American Association for Adult & Continuing Education, 1989.
MLA-referens (9:e uppl.)American Association for Adult and Continuing Education. Adult Learning. American Association for Adult & Continuing Education, 1989.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.