Cita APA (7th ed.)
Kothari, C. (2004). Research methodology: Methods and techniques (2nd rev. ed.). New Age International.
Cita Chicago (17th ed.)
Kothari, C.R. Research Methodology: Methods and Techniques. 2nd rev. ed. New Delhi: New Age International, 2004.
Cita MLA (9th ed.)
Kothari, C.R. Research Methodology: Methods and Techniques. 2nd rev. ed. New Age International, 2004.
Atenció: Aquestes cites poden no estar 100% correctes.