American Association for Adult and Continuing Education. (1989). Adult learning. American Association for Adult & Continuing Education.
Chicago-Zitierstil (17. Ausg.)American Association for Adult and Continuing Education. Adult Learning. Washington, D.C.: American Association for Adult & Continuing Education, 1989.
MLA-Zitierstil (9. Ausg.)American Association for Adult and Continuing Education. Adult Learning. American Association for Adult & Continuing Education, 1989.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.