APA (7th ed.) Citation

Sumner, C., & Palmer, B. W. (1990). The selected letters of Charles Sumner. Northeastern University Press.

Chicago Style (17th ed.) Citation

Sumner, Charles, and Beverly Wilson Palmer. The Selected Letters of Charles Sumner. Boston: Northeastern University Press, 1990.

MLA (9th ed.) Citation

Sumner, Charles, and Beverly Wilson Palmer. The Selected Letters of Charles Sumner. Northeastern University Press, 1990.