APA (7. basım) Alıntı
Tough, A. M. (1979). The adult's learning projects: A fresh approach to theory and practice in adult learning (2nd ed.). Learning Concepts.
Chicago Style (17. basım) Atıf
Tough, Allen M. The Adult's Learning Projects: A Fresh Approach to Theory and Practice in Adult Learning. 2nd ed. Austin, Tex.: Learning Concepts, 1979.
MLA (9th ed.) Atıf
Tough, Allen M. The Adult's Learning Projects: A Fresh Approach to Theory and Practice in Adult Learning. 2nd ed. Learning Concepts, 1979.
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