TY  - BOOK
ED  - International Labour Office
TI  - Model code of safety regulations for underground work in coal mines for the guidance of governments and of the coal-mining industry
AV  - HD7269.M615 I5
U1  - 622.8 
PY  - 1950///
CY  - Geneva
KW  - Coal mines and mining
KW  - Safety measures
ER  -