APA (7th ed.) Citation

Richards, L. L. (2007). The California Gold Rush and the coming of the Civil War. Alfred A. Knopf.

Chicago Style (17th ed.) Citation

Richards, Leonard L. The California Gold Rush and the Coming of the Civil War. New York: Alfred A. Knopf, 2007.

MLA (9th ed.) Citation

Richards, Leonard L. The California Gold Rush and the Coming of the Civil War. Alfred A. Knopf, 2007.