Coal-mine ventilation factors.

Bibliographic Details

Other Authors:	Greenwald, H. P. (Harold Putnam), 1893-, McElroy, G. E. (George Edward), 1889-
Format:	Government Document eBook
Language:	English
Published:	[Washington?] : U.S. Government Printing Office, 1929.
Series:	Mines Bur. Bull. No. 285
Subjects:	Ventilation. Electronic books.
Online Access:	Connect to the full text of this electronic document