Cita APA

Brown, L. R. (1989). State of the world 1988. Prentice-Hall of India.

Citación estilo Chicago

Brown, Lester R. State of the World 1988. New York: Prentice-Hall of India, 1989.

Cita MLA

Brown, Lester R. State of the World 1988. Prentice-Hall of India, 1989.