Cochran, W. G. (1999). Sampling techniques (3rd ed.). Wiley India (P) Ltd..
Chicago Edition CitationCochran, William G. Sampling Techniques. 3rd ed. New Delhi: Wiley India (P) Ltd., 1999.
Cita MLACochran, William G. Sampling Techniques. 3rd ed. Wiley India (P) Ltd., 1999.
Atenció: Aquestes cites poden no estar 100% correctes.