Citazione Stile APA (7a Edizione)

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

Citazione stile Chigago Style (17a edizione)

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

Citatione MLA (9a ed.)

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