- Dreikurs, Rudolf, 1897-1972.
- Fenning, Edna G.
- International library of psychology. Individual differences ; 5
- International library of psychology
people who borrowed this, also borrowed:
- "First published in 1935 by Kegan Paul, Trench, Trubner & Co., Ltd."
- "Translated from the German by Edna G. Fenning."
University of Huddersfield Library Catalogue