TY  - BOOK
ED  - United States
TI  - To amend the Federal coal mine health and safety act of 1969: Hearings, Ninety-second Congress, first session [on] H.R. 5680 ..
AV  - KF27.E343 1971c 
U1  - 344/.73/0465 
PY  - 1971///
CY  - Washington
PB  - U.S. Govt. Print. Off.
KW  - Coal mines and mining
KW  - Safety regulations
KW  - United States
KW  - Local
N1  - Hearings held in Washington, D.C., Mar. 9-11, 1971 and in Hazard, Ky., Mar. 12-13, 1971
ER  -