Kumar, R. (2014). Research methodology: A step-by-step guide for beginners (4a. ed.). SAGE.
Cita Chicago Style (17a ed.)Kumar, Ranjit. Research Methodology: A Step-by-step Guide for Beginners. 4a. ed. Los Angeles: SAGE, 2014.
Cita MLA (9a ed.)Kumar, Ranjit. Research Methodology: A Step-by-step Guide for Beginners. 4a. ed. SAGE, 2014.
Precaución: Estas citas no son 100% exactas.