APA (7th ed.) Citation

Hacker, L. M., Modley, R., & Taylor, G. R. (1937). The United States: A graphic history. Modern age books, inc..

Chicago Style (17th ed.) Citation

Hacker, Louis M., Rudolf Modley, and George Rogers Taylor. The United States: A Graphic History. New York: Modern age books, inc., 1937.

MLA (9th ed.) Citation

Hacker, Louis M., et al. The United States: A Graphic History. Modern age books, inc., 1937.