Timbering regulations in certain coal mines of Pennsylvania, West Virginia, and Ohio.

Bibliographic Details
Other Authors:	Calverley, Joseph Gladstone, 1886-, Paul, J. W. (James Washington), Sibray, D. L.
Format:	Government Document eBook
Language:	English
Published:	[Washington?] : U.S. Government Printing Office, 1930.
Series:	Mines Bur. Technical Paper No. 485
Subjects:	Mine timbering > Law and legislation. Electronic books.
Online Access:	Connect to the full text of this electronic document

Available Online

Holdings details from Available Online
Call Number	Status	Get It

	Available