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2
-
The structure of human abilities / Philip E Vernon.
- 153.9 V539 1961
- Vernon, Philip E., 1905-1987.
- Methuen,
- 1961.
- London :
-
Personality tests and assessments / by Philip E. Vernon.
- 150.287 V539
- Vernon, Philip E., 1905-1987.
- Methuen,
- 1953
- London :