Παραπομπή APA

Hays, S. (1960). Out line of statistics/6e (6th ed.). Long mans.

Παραπομπή Chicago Style

Hays, Samuel. Out Line of Statistics/6e. 6th ed. London: Long mans, 1960.

Παραπομπή MLA

Hays, Samuel. Out Line of Statistics/6e. 6th ed. Long mans, 1960.