The world coal-mining industry. - International Labor Office; International Labor Office (Nendeln Kraus Reprint, 1975)
v.1. Economic conditions. -- v.2. Social conditions.
"Originally prepared and distributed in proof as a 'white' report, intended to serve as a basis for discussion at the Technical Tripartite Conference on the Coal Mining Industry ... in Geneva in May 1938". -- Introd.
At head of title: International Labour Office.
Bound with International Labor Office. Employment, wages and international trade.
Keywords: Coal mines and mining; Coal trade; Coal-miners.