APA aipamena

Cochran, W. G. (1999). sampling techniques (3rd ed.). Wiley.

Chicago Style aipamena

Cochran, William G. Sampling Techniques. 3rd ed. New York: Wiley, 1999.

MLA aipamena

Cochran, William G. Sampling Techniques. 3rd ed. Wiley, 1999.