APA (7th ed.) Citation

Smith, H. K. (1949). The state of Europe ([1st ed.].). Knopf.

Chicago Style (17th ed.) Citation

Smith, Howard K. The State of Europe. [1st ed.]. New York: Knopf, 1949.

MLA (9th ed.) Citation

Smith, Howard K. The State of Europe. [1st ed.]. Knopf, 1949.