Παραπομπή APA

Kothari, C. R. (2005). Research methodology: Methods and techniques.

Παραπομπή Chicago Style

Kothari, C R. Research Methodology: Methods and Techniques. New Age International (P) Ltd., New Delhi, 2005.

Παραπομπή MLA

Kothari, C R. Research Methodology: Methods and Techniques. 2005.