Cita APA

World Resources Institute & United Nations Environment Programme. (1986). World resources. World Resources Institute.

Citación estilo Chicago

World Resources Institute and United Nations Environment Programme. World Resources. Washington, D.C.: World Resources Institute, 1986.

Cita MLA

World Resources Institute and United Nations Environment Programme. World Resources. World Resources Institute, 1986.

Warning: These citations may not always be 100% accurate.