APA (7th ed.) Citation

Marx, K., & Engels, F. (1965). Karl Marx and Frederick Engels: Selected correspondence (2nd. ed. rev. and supplemented.). Progress Publishers.

Chicago Style (17th ed.) Citation

Marx, Karl, and Friedrich Engels. Karl Marx and Frederick Engels: Selected Correspondence. 2nd. ed. rev. and supplemented. Moscow: Progress Publishers, 1965.

MLA (8th ed.) Citation

Marx, Karl, and Friedrich Engels. Karl Marx and Frederick Engels: Selected Correspondence. 2nd. ed. rev. and supplemented. Progress Publishers, 1965.