Singh, J. (2007). Methodology and techniques of social research. Kanishka.
Cita Chicago (17th ed.)Singh, Jaspal. Methodology and Techniques of Social Research. New York: Kanishka, 2007.
Cita MLA (9th ed.)Singh, Jaspal. Methodology and Techniques of Social Research. Kanishka, 2007.
Atenció: Aquestes cites poden no estar 100% correctes.