APA (7th ed.) Citation

Cronbach, L. J. (1949). Essentials of psychological testing. Harper & Brothers.

Chicago Style (17th ed.) Citation

Cronbach, Lee J. Essentials of Psychological Testing. New York: Harper & Brothers, 1949.

MLA (8th ed.) Citation

Cronbach, Lee J. Essentials of Psychological Testing. Harper & Brothers, 1949.