APA (7th ed.) Citation

Cook, C., & Paxton, J. (1979). Commonwealth political facts. Facts on File.

Chicago Style (17th ed.) Citation

Cook, Chris, and John Paxton. Commonwealth Political Facts. New York: Facts on File, 1979.

MLA (9th ed.) Citation

Cook, Chris, and John Paxton. Commonwealth Political Facts. Facts on File, 1979.