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Lua i Stíl Chicago (17ú heag.)United States. National Aeronautics and Space Administration, United Nations Environment Programme, World Bank, agus Robert T. Watson. Protecting Our Planet, Securing Our Future: Linkages Among Global Environmental Issues and Human Needs. [Nairobi, Kenya?] : Washington, D.C. : U.S. National Aeronautics and Space Administration, and The World Bank: United Nations Environment Programme, 1998.
Lua MLA (8ú heag.)United States. National Aeronautics and Space Administration, et al. Protecting Our Planet, Securing Our Future: Linkages Among Global Environmental Issues and Human Needs. United Nations Environment Programme, 1998.