Dyfyniad APA

Kothari, C. R. (1990). Research methodology: Methods and techniques (Second edition & Revised edition.). New Age; Wishwa Prakashan.

Dyfyniad Arddull Chicago

Kothari, C. R. Research Methodology: Methods and Techniques. Second edition & Revised edition. New Delhi: New Age; Wishwa Prakashan, 1990.

Dyfyniad MLA

Kothari, C. R. Research Methodology: Methods and Techniques. Second edition & Revised edition. New Age; Wishwa Prakashan, 1990.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.