Injury experience in coal mining, 1977.

Injury experience in coal mining, 1977. - [Washington, DC] U.S. Dept. of Labor, Mine Safety and Health Administration 1979. - iv, 143 p. ill. 27 cm. - Its Information report - Mine Safety and Health Administration IR 1108 . - Informational report (United States. Mining Enforcement and Safety Administration) IR 1108. .


Coal mine accidents--United States--Statistics.
Coal mine accidents


United States


Statistics

TN 295 / .U4 1977
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