Cita APA (7a ed.)

Palmer, J. A. (2001). Fifty key thinkers on the environment. Routledge.

Cita Chicago Style (17a ed.)

Palmer, Joy A. Fifty Key Thinkers on the Environment. London: Routledge, 2001.

Cita MLA (9a ed.)

Palmer, Joy A. Fifty Key Thinkers on the Environment. Routledge, 2001.