Cita APA (7a ed.)

Smith, M., & Duffy, R. (2003). The ethics of tourism development. Routledge.

Cita Chicago Style (17a ed.)

Smith, Mick, y Rosaleen Duffy. The Ethics of Tourism Development. London ; New York: Routledge, 2003.

Cita MLA (8a ed.)

Smith, Mick, y Rosaleen Duffy. The Ethics of Tourism Development. Routledge, 2003.