APA (7th ed.) Citation

Waldman, C., & Mason, C. (2006). Encyclopedia of European peoples. Facts On File.

Chicago Style (17th ed.) Citation

Waldman, Carl, and Catherine Mason. Encyclopedia of European Peoples. New York: Facts On File, 2006.

MLA (9th ed.) Citation

Waldman, Carl, and Catherine Mason. Encyclopedia of European Peoples. Facts On File, 2006.