Styl cytowania APA

Kothari, C. (2009). Research methodology: Methods and techniques (2nd rev ed.). New age International.

Styl cytowania Chicago

Kothari, C.R. Research Methodology: Methods and Techniques. 2nd rev ed. New Delhi: New age International, 2009.

Styl cytowania MLA

Kothari, C.R. Research Methodology: Methods and Techniques. 2nd rev ed. New age International, 2009.