APA-referens

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

Chicago-stil citat

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

MLA-referens

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

Varning: dessa hänvisningar är inte alltid fullständigt riktiga.