Cita APA (7th ed.)

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

Cita Chicago (17th ed.)

Cronbach, Lee Joseph. Essentials of Psychological Testing. New York: Harper, 1949.

Cita MLA (9th ed.)

Cronbach, Lee Joseph. Essentials of Psychological Testing. Harper, 1949.