Cita APA (7th ed.)
Brown, L. R. (1984). State of the world 1984: A worldwatch institute report on progress toward a sustainable society. W.W. Norton & Co..
Cita Chicago (17th ed.)
Brown, Lester R. State of the World 1984: A Worldwatch Institute Report on Progress Toward a Sustainable Society. New York: W.W. Norton & Co., 1984.
Cita MLA (9th ed.)
Brown, Lester R. State of the World 1984: A Worldwatch Institute Report on Progress Toward a Sustainable Society. W.W. Norton & Co., 1984.
Atenció: Aquestes cites poden no estar 100% correctes.