APA (7th ed.) Citation

Beard, C. A., & Beard, M. R. (1944). A basic history of the United States. Blakiston.

Chicago Style (17th ed.) Citation

Beard, Charles Austin, and Mary Ritter Beard. A Basic History of the United States. Philadelphia: Blakiston, 1944.

MLA (9th ed.) Citation

Beard, Charles Austin, and Mary Ritter Beard. A Basic History of the United States. Blakiston, 1944.