APA stil citiranja

Sumner, C., & Palmer, B. W. (1990). The selected letters of Charles Summer: The selected letters of Charles Summer : volume one : 1830-1859. Boston: Northeastern University Press.

Chicago stil citiranja

Sumner, Charles, and Beverly Wilson Palmer. The selected letters of Charles Summer: The selected letters of Charles Summer : volume one : 1830-1859. Boston: Northeastern University Press, 1990.

MLA stil citiranja

Sumner, Charles, and Beverly Wilson Palmer. The selected letters of Charles Summer: The selected letters of Charles Summer : volume one : 1830-1859. Boston: Northeastern University Press, 1990.