APA Format
Marx, Karl; Engels, Frederick. (1937).
The Civil war in the United States / by Karl Marx and Frederick Engels
. New York :: International Publishers,.
MLA Format
Marx, Karl; Engels, Frederick.
The Civil war in the United States / by Karl Marx and Frederick Engels
. New York :: International Publishers,, 1937
Chicago Format
Marx, Karl; Engels, Frederick. The Civil war in the United States / by Karl Marx and Frederick Engels. New York :: International Publishers,, 1937.