Dyfyniad APA
Kothari, C. R. (2004). Research methodology: Methods and techniques (2nd ed.). New Age Techno Press.
Dyfyniad Arddull Chicago
Kothari, C. R. Research Methodology: Methods and Techniques. 2nd ed. New Delhi: New Age Techno Press, 2004.
Dyfyniad MLA
Kothari, C. R. Research Methodology: Methods and Techniques. 2nd ed. New Age Techno Press, 2004.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.