Cita APA

Worldwatch Institute & Brown, L. (1984). State of the world, 1984-. W.W. Norton.

Citación estilo Chicago

Worldwatch Institute and Lester Brown. State of the World, 1984-. New York: W.W. Norton, 1984.

Cita MLA

Worldwatch Institute and Lester Brown. State of the World, 1984-. W.W. Norton, 1984.