Worldwatch Institute, Annan, K. A., Flavin, C., & Starke, L. (2002). State of the world, 2002: A Worldwatch Institute report on progress toward a sustainable society. Norton.
Chicago-referens (17:e uppl.)Worldwatch Institute, Kofi A. Annan, Christopher Flavin, och Linda Starke. State of the World, 2002: A Worldwatch Institute Report on Progress Toward a Sustainable Society. New York: Norton, 2002.
MLA-referens (9:e uppl.)Worldwatch Institute, et al. State of the World, 2002: A Worldwatch Institute Report on Progress Toward a Sustainable Society. Norton, 2002.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.