APA (7e ed.) Bronvermelding

Gilliland, A. R., & Clark, E. L. 1. . . .. (1939). Psychology of individual differences. Prentice-Hall.

Chicago (17e ed.) Bronvermelding

Gilliland, Adam Raymond, en Edward Lester 1895- Clark. Psychology of Individual Differences. New York: Prentice-Hall, 1939.

MLA (9e ed.) Bronvermelding

Gilliland, Adam Raymond, en Edward Lester 1895- Clark. Psychology of Individual Differences. Prentice-Hall, 1939.