APA (7th ed.) Citation

Marx, K., & Engels, F. (1961). The Civil War in the United States (Centennial [i.e. 3d] ed.). International Publishers.

Chicago Style (17th ed.) Citation

Marx, Karl, and Friedrich Engels. The Civil War in the United States. Centennial [i.e. 3d] ed. New York: International Publishers, 1961.

MLA (9th ed.) Citation

Marx, Karl, and Friedrich Engels. The Civil War in the United States. Centennial [i.e. 3d] ed. International Publishers, 1961.