American Association for Adult and Continuing Education. (1989). Adult learning. American Association for Adult & Continuing Education.
Cita Chicago (17th ed.)American Association for Adult and Continuing Education. Adult Learning. Washington, D.C.: American Association for Adult & Continuing Education, 1989.
Cita MLA (9th ed.)American Association for Adult and Continuing Education. Adult Learning. American Association for Adult & Continuing Education, 1989.
Atenció: Aquestes cites poden no estar 100% correctes.