APA (7th ed.) Citation

Thomas, H. C., & Hamm, W. A. (1934). Europe since 1850. Holt.

Chicago Style (17th ed.) Citation

Thomas, Harrison Cook, and William Albert Hamm. Europe Since 1850. New York: Holt, 1934.

MLA (9th ed.) Citation

Thomas, Harrison Cook, and William Albert Hamm. Europe Since 1850. Holt, 1934.

Warning: These citations may not always be 100% accurate.