APA استشهاد

Cochran, W. (1963). Sampling techniques/2nd ed (2nd ed.). john Wiley.

استشهاد بنمط شيكاغو

Cochran, William. Sampling Techniques/2nd Ed. 2nd ed. London: john Wiley, 1963.

MLA استشهاد

Cochran, William. Sampling Techniques/2nd Ed. 2nd ed. john Wiley, 1963.