The world coal-mining industry ...
Series: Studies and reports, series B (Economic conditions) -- no. 31
Published: 1938
Place of publication: Geneva
Language: eng
Subjects: Coal miners; Coal mines and mining; Coal trade
Notes: At head of title: International labour office ...

"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.
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