एपीए उद्धरण

Bhatnagar,O P. (1981). Research methods and measurements in behavioural sciences. Agride Publishing Academy.

शिकागो स्टाइल उद्धरण

Bhatnagar,O P. Research Methods and Measurements in Behavioural Sciences. New Delhi: Agride Publishing Academy, 1981.

एमएलए उद्धरण

Bhatnagar,O P. Research Methods and Measurements in Behavioural Sciences. Agride Publishing Academy, 1981.