Patrick, G. T. W. (1978). Introduction to Philosophy (Reprint ed.). Surjeet Publications.
Cita Chicago (17th ed.)Patrick, G. T. W. Introduction to Philosophy. Reprint ed. Delhi: Surjeet Publications, 1978.
Cita MLA (9th ed.)Patrick, G. T. W. Introduction to Philosophy. Reprint ed. Surjeet Publications, 1978.
Atenció: Aquestes cites poden no estar 100% correctes.