Supervision as means of preventing accidents from falls of roof and coal.

Bibliographic Details

Other Authors:	Forbes, W. H. (William Henry), 1851-1914
Format:	Government Document eBook
Language:	English
Published:	Washington, D.C. : [publisher not identified], 1931.
Series:	Mines Bur. Info. Circ. No. 6434
Subjects:	Accidents. Electronic books.
Online Access:	Connect to the full text of this electronic document