TY  - BOOK
ED  - International Labour Office
TI  - Safety in coal mines
T2  - Its Studies and reports, new ser.,
AV  - HD7801 .I67 no. 33, etc.
U1  - 622.8 
PY  - 1953///-55
CY  - Geneva
KW  - Coal mines and mining
KW  - Safety measures
KW  - Coal mine accidents
KW  - Mine inspection
N1  - Previous ed. issued in 1939 under title: Safety provisions for underground work in coal mines; Bibliography: v. 1, p. [262]-266; v.l. Organisation on the national and international levels.--v. 2. Legislation
ER  -