Cita APA (7a ed.)

Proctor, J. D., & Smith, D. M. (1999). Geography and ethics: Journeys in a moral terrain. Routledge.

Cita Chicago Style (17a ed.)

Proctor, James D., y David M. Smith. Geography and Ethics: Journeys in a Moral Terrain. London ; New York: Routledge, 1999.

Cita MLA (8a ed.)

Proctor, James D., y David M. Smith. Geography and Ethics: Journeys in a Moral Terrain. Routledge, 1999.