Cita APA (7th ed.)
Blackstone, W. T. (1972). Introductory readings in philosophy. Holt, Rinehart.
Cita Chicago (17th ed.)
Blackstone, William T. Introductory Readings in Philosophy. New York: Holt, Rinehart, 1972.
Cita MLA (9th ed.)
Blackstone, William T. Introductory Readings in Philosophy. Holt, Rinehart, 1972.
Atenció: Aquestes cites poden no estar 100% correctes.