Lua APA (7ú heag.)

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

Lua i Stíl Chicago (17ú heag.)

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

Lua MLA (9ú heag.)

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

Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.