Cita APA (7a ed.)

Hussen, A. M. (2000). Principles of environmental economics: Economics, ecology and environmental policy. Routledge.

Cita Chicago Style (17a ed.)

Hussen, Ahmed M. Principles of Environmental Economics: Economics, Ecology and Environmental Policy. London [etc.]: Routledge, 2000.

Cita MLA (9a ed.)

Hussen, Ahmed M. Principles of Environmental Economics: Economics, Ecology and Environmental Policy. Routledge, 2000.