Cita APA (7th ed.)

Hoy, R. C., & Oaklander, L. N. (2005). Metaphysics: Classic and contemporary readings (2nd ed.). Wadsworth Cengage Learning.

Cita Chicago (17th ed.)

Hoy, Ronald C., i L. Nathan Oaklander. Metaphysics: Classic and Contemporary Readings. 2nd ed. Australia: Wadsworth Cengage Learning, 2005.

Cita MLA (9th ed.)

Hoy, Ronald C., i L. Nathan Oaklander. Metaphysics: Classic and Contemporary Readings. 2nd ed. Wadsworth Cengage Learning, 2005.