References
- De Montaigne , Montaigne The essays of Michel de Montaigne. Vol. III , C. Cohon (Trans.); W. C. Hazlitt (Ed.). London : G. Bell , 1913 .
- Hilgard , E. R. Introduction to Psychology. New York : Harcourt, Brace , 1953 .
- Murray , H. A. et al., Explorations in Personality. New York : Oxford , 1938 .