Dhillon, B. S. (2005). Philosophy for Civil Services Preliminary Examination. Upkar Prakashan.
Cita Chicago (17th ed.)Dhillon, B. S. Philosophy for Civil Services Preliminary Examination. New Delhi: Upkar Prakashan, 2005.
Cita MLA (9th ed.)Dhillon, B. S. Philosophy for Civil Services Preliminary Examination. Upkar Prakashan, 2005.
Atenció: Aquestes cites poden no estar 100% correctes.