Παραπομπή APA

Snedecor, G. W., & Cochran, W. G. (1967). Statistical methods (6th ed.). Oxford & IBH.

Παραπομπή Chicago Style

Snedecor, George W., και William G. Cochran. Statistical Methods. 6th ed. Oxford & IBH, 1967.

Παραπομπή MLA

Snedecor, George W., και William G. Cochran. Statistical Methods. 6th ed. Oxford & IBH, 1967.