Παραπομπή APA

Ranjit Kumar. (2014). Research methodology: A step-by-step guide for begineers (4th ed.). Sage Publications India.

Παραπομπή Chicago Style

Ranjit Kumar. Research Methodology: A Step-by-step Guide for Begineers. 4th ed. New Delhi: Sage Publications India, 2014.

Παραπομπή MLA

Ranjit Kumar. Research Methodology: A Step-by-step Guide for Begineers. 4th ed. Sage Publications India, 2014.