APA (7th ed.) Citation

Blake, N. M., & Barck, O. T. (1960). The United States in its world relations. McGraw-Hill.

Chicago Style (17th ed.) Citation

Blake, Nelson Manfred, and Oscar Theodore Barck. The United States in Its World Relations. New York: McGraw-Hill, 1960.

MLA (9th ed.) Citation

Blake, Nelson Manfred, and Oscar Theodore Barck. The United States in Its World Relations. McGraw-Hill, 1960.