(1996). State of the world 1996: A worldwatch institute report on progress toward a sustainable society. New York: W.W.Norton & Company.
Chicago Style CitationState of the World 1996: A Worldwatch Institute Report On Progress Toward a Sustainable Society. New York: W.W.Norton & Company, 1996.
Cita MLAState of the World 1996: A Worldwatch Institute Report On Progress Toward a Sustainable Society. New York: W.W.Norton & Company, 1996.
Atenció: Aquestes cites poden no estar 100% correctes.