Voitinsky I.S. Collective agreements on working conditions. In Russian.Voytinskiy I.S. Kollektivnye soglasheniya ob usloviyakh truda. Tariff Contract). Third expanded edition. Department of Trade and Industry of the Kuban Regional Government. Statistical and Economic Department. Department of Labor Statistics. Ekaterinburg. Cooperative Printing House. 1919. 50 p. Please contact us for details on condition of available copies of the book. SKUalba618b14c0daa43c0