APA-referens

Environment and Resources: Geography in an urban age. New York: Macmillan Publishing.

Chicago-stil citat

Environment and Resources: Geography in an Urban Age. New York: Macmillan Publishing.

MLA-referens

Environment and Resources: Geography in an Urban Age. New York: Macmillan Publishing.

Varning: dessa hänvisningar är inte alltid fullständigt riktiga.