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The Pittsburgh coal bed : its early history and development

The Pittsburgh coal bed : its early history and development
Digital図書
by Howard N. EavensonAmerican Institute of Mining and Metallurgical Engineers1938
Other Libraries in Japan
  • Subject HeadingCoal mines and mining -- Pennsylvania -- Pittsburgh Coal mines and mining -- West...
  • Subject Heading (ID)Coal mines and mining -- Pennsylvania -- Pittsburgh Coal mines and mining -- West...

Substantial prosperity : illustrated by diagrams showing panics, periods of prosperity and logical forecast of the future : coal production and exhaustion of coal with special reference to Pittsburgh coal district 2nd ed

Substantial prosperity : illustrated by diagrams showing panics, periods of prosperity and logical forecast of the future : coal production and exhaustion of coal with special reference to Pittsburgh coal district 2nd ed
Paper図書
by H.A. KuhnPittsburgh-Westmoreland Coal1907
Other Libraries in Japan
  • Subject Heading...s -- 1865-1918 Coal mines and mining -- Pennsylvania -- Pittsburgh Pittsburgh-Westmoreland Coal
  • Subject Heading (ID)...s -- 1865-1918 Coal mines and mining -- Pennsylvania -- Pittsburgh Pittsburgh-Westmoreland Coal

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