APA (7th ed.) Citation

Marx, K., & Engels, F. (1975). Revolution in Spain. Greenwood Press.

Chicago Style (17th ed.) Citation

Marx, Karl, and Friedrich Engels. Revolution in Spain. Westport, Conn.: Greenwood Press, 1975.

MLA (9th ed.) Citation

Marx, Karl, and Friedrich Engels. Revolution in Spain. Greenwood Press, 1975.