Cita APA (7th ed.)

Robertson, J. I. (1992). Civil war! america becomes one nation. Alferd A. Knopf.

Cita Chicago (17th ed.)

Robertson, James I. Civil War! America Becomes One Nation. New York: Alferd A. Knopf, 1992.

Cita MLA (9th ed.)

Robertson, James I. Civil War! America Becomes One Nation. Alferd A. Knopf, 1992.