Cita APA (7th ed.)
Kumar, R. (2005). Research methodology: A step by-by-step guide for beginners (2nd ed.). Sage Publications.
Cita Chicago (17th ed.)
Kumar, Ranjit. Research Methodology: A Step By-by-step Guide for Beginners. 2nd ed. London: Sage Publications, 2005.
Cita MLA (9th ed.)
Kumar, Ranjit. Research Methodology: A Step By-by-step Guide for Beginners. 2nd ed. Sage Publications, 2005.
Atenció: Aquestes cites poden no estar 100% correctes.