APA aipamena

Gurao, R. (2015). Sampling Methods. Chandralok Prakashan.

Chicago Style aipamena

Gurao, Rajendra. Sampling Methods. Kanpur: Chandralok Prakashan, 2015.

MLA aipamena

Gurao, Rajendra. Sampling Methods. Chandralok Prakashan, 2015.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.