Cita APA (7a ed.)

Artigas, M. (1990). Introduction to philosophy. Sinag-Tala.

Cita Chicago Style (17a ed.)

Artigas, Mariano. Introduction to Philosophy. Manila: Sinag-Tala, 1990.

Cita MLA (9a ed.)

Artigas, Mariano. Introduction to Philosophy. Sinag-Tala, 1990.