Cita APA (7a ed.)

Blackstone, W. T. (1972). Introductory readings in philosophy. Holt, Rinehart.

Cita Chicago Style (17a ed.)

Blackstone, William T. Introductory Readings in Philosophy. New York: Holt, Rinehart, 1972.

Cita MLA (9a ed.)

Blackstone, William T. Introductory Readings in Philosophy. Holt, Rinehart, 1972.