APA (7th ed.) Citation

Marx, K., Engels, F., & Lapides, K. (1987). Marx and Engels on the trade unions. New York: Praeger.

Chicago Style (17th ed.) Citation

Marx, Karl, Friedrich Engels, and Kenneth Lapides. Marx and Engels on the Trade Unions. New York: Praeger, 1987.

MLA (8th ed.) Citation

Marx, Karl, et al. Marx and Engels on the Trade Unions. New York: Praeger, 1987.