APA (7th ed.) Citation

Barck, O. T., & Blake, N. M. (1965). Since 1900: A history of the United States in our times (4th ed.). Macmillan Company.

Chicago Style (17th ed.) Citation

Barck, Oscar Theodore, and Nelson Manfred Blake. Since 1900: A History of the United States in Our Times. 4th ed. New York: Macmillan Company, 1965.

MLA (9th ed.) Citation

Barck, Oscar Theodore, and Nelson Manfred Blake. Since 1900: A History of the United States in Our Times. 4th ed. Macmillan Company, 1965.