APA aipamena

C R Kothari. (2004). Research Methodology: Methods and Techniques (2.). New age international.

Chicago Style aipamena

C R Kothari. Research Methodology: Methods and Techniques. 2. New age international, 2004.

MLA aipamena

C R Kothari. Research Methodology: Methods and Techniques. 2. New age international, 2004.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.