APA (7th ed.) Zitazioa

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

Chicago Style (17th ed.) Zitazioa

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

MLA (9th ed.) Zitazioa

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