APA
Brown L. R., . (1988). State of the world 1988. New York: Prentice Hall of India.
Chicago
Brown Lester R, . 1988. State of the world 1988. New York: Prentice Hall of India.
Harvard
Brown L. R., . (1988). State of the world 1988. New York: Prentice Hall of India.
MLA
Brown Lester R, . State of the world 1988. New York: Prentice Hall of India. 1988.