एपीए उद्धरण

Cochran, w. G. (1990). Sampling Techniques (3rd ed.). Wiley Eastern Ltd.

शिकागो स्टाइल उद्धरण

Cochran, william G. Sampling Techniques. 3rd ed. New Delhi: Wiley Eastern Ltd, 1990.

एमएलए उद्धरण

Cochran, william G. Sampling Techniques. 3rd ed. Wiley Eastern Ltd, 1990.