APA-Zitierstil (7. Ausg.)

Tough, A. (1971). The adult's learning projects: A fresh approach to theory and practice in adult learning. Ontario Inst.for Studies in Education.

Chicago-Zitierstil (17. Ausg.)

Tough, Allen. The Adult's Learning Projects: A Fresh Approach to Theory and Practice in Adult Learning. Toronto: Ontario Inst.for Studies in Education, 1971.

MLA-Zitierstil (9. Ausg.)

Tough, Allen. The Adult's Learning Projects: A Fresh Approach to Theory and Practice in Adult Learning. Ontario Inst.for Studies in Education, 1971.