Catalog Record: A study of mine roof of the Pittsburgh coal bed in the Pittsburgh mining district | Hathi Trust Digital Library

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A study of mine roof of the Pittsburgh coal bed in the Pittsburgh mining district / by J.W. Paul and L.N. Plein.

Main Author: Paul, James Washington.
Other Authors: Plein, Leopold Nicholas, 1897-
Language(s): English
Published: Washington, U.S. Bureau of Mines, 1932.
Subjects: Mine timbering.
Coal mines and mining > Pennsylvania.
Physical Description: iv, 98 p. : illus., map, tables, forms ; 23 cm.
Original Format: Book
Locate a Print Version: Find in a library
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