Coal mine health and safety.
Subtitle: Hearings ... Ninety-first Congress, first session, on H. R. 4047, H. R. 4295, and H. R. 7976, bills to improve the health and safety conditions of persons working in the coal mine industry of the United States.
Publisher: U.S. Govt. Print. Off.
Published: 1969
Place of publication: Washington
Language: eng
Number of pages: 658
Subjects: Medicine, Industrial.; Industrial accidents -- prevention & control.; Coal mines and mining.
Notes: Hearings held in Washington, D. C., March 4, 19, 20, 26, 27; April 15, 16, 17, 23; and May 1, 1969.