Dokumentuaren aipamena
APA (7th ed.) Zitazioa
Worldwatch Institute, Lester R. Brown, Edward C. Wolf, & Linda Starke. (1987). State of the world, 1987: A Worldwatch Institute report on progress toward a sustainable society. Norton.
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Chicago Style (17th ed.) Zitazioa
Worldwatch Institute, Lester R. Brown, Edward C. Wolf, eta Linda Starke. State of the World, 1987: A Worldwatch Institute Report on Progress Toward a Sustainable Society. New York: Norton, 1987.
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MLA (9th ed.) Zitazioa
Worldwatch Institute, et al. State of the World, 1987: A Worldwatch Institute Report on Progress Toward a Sustainable Society. Norton, 1987.
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