United States. Coal commission · 6 obras en el catálogoObras[[Reports and accompanying papers. 1923][Reports and accompanying papers. 1923]LLabor relations in the anthracite industryLabor relations in the anthracite industryOOutlaw strikes in the anthracite fieldsOutlaw strikes in the anthracite fieldsTThe campaign of the United mine workers of America against oThe campaign of the United mine workers of America against open shop mines in Northeastern Kentucky to extend the domination of its monopoly and in aid of its strike against the public in 1922CComparative efficiency of labor in the bituminous coal indusComparative efficiency of labor in the bituminous coal industry under union and non-union operationUUnion rules and practicesUnion rules and practices
TThe campaign of the United mine workers of America against oThe campaign of the United mine workers of America against open shop mines in Northeastern Kentucky to extend the domination of its monopoly and in aid of its strike against the public in 1922
CComparative efficiency of labor in the bituminous coal indusComparative efficiency of labor in the bituminous coal industry under union and non-union operation