APA (7th ed.) Citation

Marx, K., & Engels, F. (2009). The German Ideology, 1845-46. Utopias.

Chicago Style (17th ed.) Citation

Marx, Karl, and Friedrich Engels. "The German Ideology, 1845-46." Utopias 2009.

MLA (8th ed.) Citation

Marx, Karl, and Friedrich Engels. "The German Ideology, 1845-46." Utopias, 2009.

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