The health-impaired miner under black lung legislation, prepared by Leo Kramer, inc. Edited by Ewan Clague. (Praeger special studies in U.S. economic, social, and political issues)
The health-impaired miner under black lung legislation, prepared by Leo Kramer, inc. Edited by Ewan Clague.
(Praeger special studies in U.S. economic, social, and political issues)