Cita APA (7th ed.)

Hussen, A. M. (2000). Principles of Environmental Economics. Routledge.

Cita Chicago (17th ed.)

Hussen, Ahmed M. Principles of Environmental Economics. London: Routledge, 2000.

Cita MLA (9th ed.)

Hussen, Ahmed M. Principles of Environmental Economics. Routledge, 2000.