APA-Zitierstil (7. Ausg.)

Hoppock, R. (1949). Group Guidance: Principles, techniques and evaluation. McGraw-Hill.

Chicago-Zitierstil (17. Ausg.)

Hoppock, Robert. Group Guidance: Principles, Techniques and Evaluation. Nueva York: McGraw-Hill, 1949.

MLA-Zitierstil (9. Ausg.)

Hoppock, Robert. Group Guidance: Principles, Techniques and Evaluation. McGraw-Hill, 1949.