APA-referens

Nancy,K Hetzel. (1980). Environmental cooperation among industrialized countries: The role of regional organizations. University Press of America,Inc.

Chicago-stil citat

Nancy,K Hetzel. Environmental Cooperation Among Industrialized Countries: The Role of Regional Organizations. Washington: University Press of America,Inc, 1980.

MLA-referens

Nancy,K Hetzel. Environmental Cooperation Among Industrialized Countries: The Role of Regional Organizations. University Press of America,Inc, 1980.

Varning: dessa hänvisningar är inte alltid fullständigt riktiga.