Παραπομπή APA

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

Παραπομπή Chicago Style

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

Παραπομπή MLA

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