Παραπομπή APA

Hays, W. L. (1963). Statistics for psychologists. Rinehart and winston.

Παραπομπή Chicago Style

Hays, William L. Statistics for Psychologists. New York: Rinehart and winston, 1963.

Παραπομπή MLA

Hays, William L. Statistics for Psychologists. Rinehart and winston, 1963.