Cita APA (7th ed.)
Rozwenc, E. C. The Causes of the American Civil War. D.C. Heath.
Cita Chicago (17th ed.)
Rozwenc, Edwin C. The Causes of the American Civil War. Boston, EUA: D.C. Heath.
Cita MLA (9th ed.)
Rozwenc, Edwin C. The Causes of the American Civil War. D.C. Heath.
Atenció: Aquestes cites poden no estar 100% correctes.