Cita APA (7a ed.)

Sager, D., Baker, S. L., Burke, D. J., Hilyard, N. B., & Welles, G. (1999). A Question of Values.

Cita Chicago Style (17a ed.)

Sager, Don, Sharon L. Baker, Donna Joy Burke, Nann Baline Hilyard, y Gordon Welles. A Question of Values. 1999.

Cita MLA (9a ed.)

Sager, Don, et al. A Question of Values. 1999.