APA (7th ed.) Citation

CIRCA Reference (Firm) & East, R. (1990). World fact file. Facts on File.

Chicago Style (17th ed.) Citation

CIRCA Reference (Firm) and Roger East. World Fact File. New York: Facts on File, 1990.

MLA (9th ed.) Citation

CIRCA Reference (Firm) and Roger East. World Fact File. Facts on File, 1990.