United States. National Aeronautics and Space Administration, United Nations Environment Programme, World Bank, & Watson, R. T. (1998). Protecting our planet, securing our future: Linkages among global environmental issues and human needs. United Nations Environment Programme.
Chicago-referens (17:e uppl.)United States. National Aeronautics and Space Administration, United Nations Environment Programme, World Bank, och 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.
MLA-referens (8:e uppl.)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.