Injury Experience in Coal Mining, 1949: Detailed Analysis of Factors Influencing Mine Safety and Related Employment, Production and Productivity Data

Author:	Reese, Seth T.
Additional Authors:	Wrenn, Virginia E.
Year:	1953
Document Type:	N/A
Series:	United States Bureau of Mines Reports
Report Number:	Bulletin 525
Link:	https://digital.library.unt.edu/ark:/67531/metadc12684/