Catalog Record: Timbering regulations in certain coal mines of Pennsylvania, West Virginia, and Ohio | Hathi Trust Digital Library

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Timbering regulations in certain coal mines of Pennsylvania, West Virginia, and Ohio / by J.W. Paul, J.G. Calverley, and D.L. Sibray.

Main Author: Paul, James Washington.
Other Authors: Calverley, Joseph Gladstone, 1886-, Sibray, Donald Loammi, 1898-
Language(s): English
Published: Washington, D.C. : U.S.Bureau of Mines, 1930.
Subjects: Mine timbering.
Coal mines and mining > Pennsylvania.
Coal mines and mining > West Virginia.
Coal mines and mining > Ohio.
Physical Description: iv, 41 p. : illus. ; 23 cm.
Original Format: Book
Locate a Print Version: Find in a library
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