Παραπομπή APA

Ray, G. L., & Sagar, M. (2011). Research methods in social sciences and extension education (3.). Kalyani publishers.

Παραπομπή Chicago Style

Ray, G L., και Mondal Sagar. Research Methods in Social Sciences and Extension Education. 3. New Delhi: Kalyani publishers, 2011.

Παραπομπή MLA

Ray, G L., και Mondal Sagar. Research Methods in Social Sciences and Extension Education. 3. Kalyani publishers, 2011.