APA (7th ed.) Citation

Marx, K., & Engels, F. (1968). Selected works in one volume. International Publishers.

Chicago Style (17th ed.) Citation

Marx, Karl, and Friedrich Engels. Selected Works in One Volume. New York: International Publishers, 1968.

MLA (8th ed.) Citation

Marx, Karl, and Friedrich Engels. Selected Works in One Volume. International Publishers, 1968.

Warning: These citations may not always be 100% accurate.