Cita APA (7a ed.)

Duffy, R. (2002). A trip too far: Ecotourism, politics, and exploitation. Earthscan.

Cita Chicago Style (17a ed.)

Duffy, Rosaleen. A Trip Too Far: Ecotourism, Politics, and Exploitation. London ; Sterling, VA: Earthscan, 2002.

Cita MLA (9a ed.)

Duffy, Rosaleen. A Trip Too Far: Ecotourism, Politics, and Exploitation. Earthscan, 2002.