Cita APA (7a ed.)

Westphal, J., & Levenson, C. A. (1993). Time. Hackett.

Cita Chicago Style (17a ed.)

Westphal, Jonathan, y Carl Avren Levenson. Time. Indianapolis [etc.]: Hackett, 1993.

Cita MLA (9a ed.)

Westphal, Jonathan, y Carl Avren Levenson. Time. Hackett, 1993.