APA aipamena

Cochran, W. G., & Cochran, W. G. (1977). Sampling Techniques William G. Cochran. John Wiley &Sons.

Chicago Style aipamena

Cochran, William G., and William G. Cochran. Sampling Techniques William G. Cochran. John Wiley &Sons, 1977.

MLA aipamena

Cochran, William G., and William G. Cochran. Sampling Techniques William G. Cochran. John Wiley &Sons, 1977.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.