Mining of thin coal beds in anthracite region of Pennsylvania.

Bibliographic Details

Other Authors:	Ashmead, Dever C. (Dever Campbell), 1884-
Format:	Government Document eBook
Language:	English
Published:	[Washington?] : U.S. Government Printing Office, 1927.
Series:	Mines Bur. Bull. No. 245
Subjects:	Coal. Electronic books.
Online Access:	Connect to the full text of this electronic document