APA aipamena

Fred N Kerlinger. Foundations of behavioural research (2nd.). Delhi.

Chicago Style aipamena

Fred N Kerlinger. Foundations of Behavioural Research. 2nd. Delhi.

MLA aipamena

Fred N Kerlinger. Foundations of Behavioural Research. 2nd. Delhi.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.