TY  - BOOK
AU  - "International labour Organization, coal mines committee(3rd session), Pittsburgh"
ED  - "International labour Organization, coal mines committee(3rd session), Pittsburgh"
TI  - Coal Mines Committee :  Record of the third session
U1  - "X9(HZ551):9.1.N49t, J1/UN" 
PY  - 1951///
CY  - Geneva
PB  - ILO       
N1  - Appendix p 89-116
ER  -