APA (7th ed.) Zitazioa
Flavin, C., French, H., Gardner, G. T., & Starke, L. State of the World 2002: A Worldwatch Institute Report on Progress Toward a Sustainable Society. Norton : Worldwatch Institute.
Chicago Style (17th ed.) Zitazioa
Flavin, Christopher, Hilary French, Gary T. Gardner, eta Linda Starke. State of the World 2002: A Worldwatch Institute Report on Progress Toward a Sustainable Society. Nueva York, EUA: Norton : Worldwatch Institute.
MLA (9th ed.) Zitazioa
Flavin, Christopher, et al. State of the World 2002: A Worldwatch Institute Report on Progress Toward a Sustainable Society. Norton : Worldwatch Institute.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.