Παραπομπή APA

Hays, W. L. (1969). Quantification in psychology. Prentice Hall.

Παραπομπή Chicago Style

Hays, William L. Quantification in Psychology. New Delhi: Prentice Hall, 1969.

Παραπομπή MLA

Hays, William L. Quantification in Psychology. Prentice Hall, 1969.