Combinations defended : being a commentary upon, and analysis of the evidence given before the parliamentary committee of inquiry into combination of employers and workmen, appointed by the House of Commons, February, 1838 / by London Trades Combination Committee. (Published by direction of the Committee, and sold by Cleave, 1, Shoe Lane; Hetherington, 126, Strand; Watson, 15, City Road; Strange, 21, Paternoster Row, 1839)