Le Play, F., & Emerson, G. 1. (1872). The organization of labor in accordance with custom and the law of the decalogue: With a summary of comparative observations upon good and evil in the regime of labor, the causes of evils existing at the present time, and the means required to effect reform; with objections and answers, difficulties and solutions. Philadelphia: Claxton, Remsen & Haffelfinger.

Le Play, Frédéric, and G. 1796-1874 Emerson. The Organization of Labor in Accordance With Custom and the Law of the Decalogue: With a Summary of Comparative Observations Upon Good and Evil in the Regime of Labor, the Causes of Evils Existing At the Present Time, and the Means Required to Effect Reform; With Objections and Answers, Difficulties and Solutions. Philadelphia: Claxton, Remsen & Haffelfinger, 1872.

Le Play, Frédéric, and G. 1796-1874 Emerson. The Organization of Labor in Accordance With Custom and the Law of the Decalogue: With a Summary of Comparative Observations Upon Good and Evil in the Regime of Labor, the Causes of Evils Existing At the Present Time, and the Means Required to Effect Reform; With Objections and Answers, Difficulties and Solutions. Philadelphia: Claxton, Remsen & Haffelfinger, 1872.