Παραπομπή APA

(1996). State of the world 1996: A worldwatch institute report on progress toward a sustainable society. New York: W.W.Norton & Company.

Παραπομπή Chicago Style

State of the World 1996: A Worldwatch Institute Report On Progress Toward a Sustainable Society. New York: W.W.Norton & Company, 1996.

Παραπομπή MLA

State of the World 1996: A Worldwatch Institute Report On Progress Toward a Sustainable Society. New York: W.W.Norton & Company, 1996.

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