APA (7th ed.) Citation

Marx, K., & Engels, F. (1976). El sindicalismo. Laia.

Chicago Style (17th ed.) Citation

Marx, Karl, and Friedrich Engels. El Sindicalismo. Barcelona: Laia, 1976.

MLA (9th ed.) Citation

Marx, Karl, and Friedrich Engels. El Sindicalismo. Laia, 1976.

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