![Federal coal mine health program](/typo3temp/assets/_processed_/6/7/csm_explorer-book_92e5474d49.png)
Federal coal mine health program
- Auteurs : United States ;
- Editeurs : [Washington U.S. Dept. of Health, Education, and Welfare, Health Services and Mental Health Administration for sale by the Supt. of Docs., U.S. Govt. Print. Off ;
- Date d'édition : 1972-1977