एपीए उद्धरण

Cochran, W. G. (1977). Sampling techniques (3rd ed.). Wiley Eastern.

शिकागो स्टाइल उद्धरण

Cochran, William G. Sampling Techniques. 3rd ed. New Delhi: Wiley Eastern, 1977.

एमएलए उद्धरण

Cochran, William G. Sampling Techniques. 3rd ed. Wiley Eastern, 1977.