Marx and Engels on the trade unions.

MLA

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

APA

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

Chicago

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