Singh, B. R. (2008). Principles Of Sociology. Central Law Agency.
Cita Chicago (17th ed.)Singh, B. R. Principles Of Sociology. Allahabad: Central Law Agency, 2008.
Cita MLA (9th ed.)Singh, B. R. Principles Of Sociology. Central Law Agency, 2008.
Atenció: Aquestes cites poden no estar 100% correctes.