Παραπομπή APA

Panneerselvam R & Deepa Gupta. (2013). Research Methodology. PHI learning.

Παραπομπή Chicago Style

Panneerselvam R και Deepa Gupta. Research Methodology. New Delhi: PHI learning, 2013.

Παραπομπή MLA

Panneerselvam R και Deepa Gupta. Research Methodology. PHI learning, 2013.