The coal industry of the world with special reference to international trade in coal, by H.M. Hoar, Minerals Division.
|Main Author:||Hoar, Hannah Marceline (Dayle) 1870-|
Washington, U.S. Govt. Print. Off., 1930.
Coal mines and mining
"Glossary of terms used": p. 317-320.
At head of title: U.S. Department of Commerce. R.P. Lamont, secretary. Bureau of Foreign and Domestic Commerce. William L. Cooper, director.
viii, 328 p. incl. illus., maps, tables, diagrs., form.
|Original Classification Number:||HD9540 .H6|
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