APA-referens

(1996).  Sustainability, the environment and urbanization.  Earthscan.

Chicago-stil citat

 Sustainability, the Environment and Urbanization.  Earthscan, 1996.

MLA-referens

 Sustainability, the Environment and Urbanization.  Earthscan, 1996.

Varning: dessa hänvisningar är inte alltid fullständigt riktiga.