Publisher: Geological Survey / Publish Year Decade: 1930 - 1939 / Sudoc Stem: I 19.15/2 - Blacklight Search Results

Start Over Publisher Geological Survey Publish Year Decade 1930 - 1939 Sudoc Stem I 19.15/2

1. Coal mines and mining. Operating regulations to govern coal-mining methods and safety and welfare of miners on leased lands on public domain, under act of Feb. 23, 1920 (41 Stat. 437), and amendments thereto. 2d edition.

Corporate/Agency Authors:: Geological Survey and Interior Department
Publisher:: Geological Survey
Date:: 1938
SuDoc number:: I 19.15/2:C 63