TY  - BOOK
ED  - Coal Mines Committee
ED  - International Labour Organization (Geneva),
TI  - Hours of work in coal mines: report II : second item on the agenda 
U1  - 331.762233 
PY  - 1951///
CY  - Geneva
PB  - International Lobour Office
KW  - Coal mines and mining
KW  - Coal miners
KW  - Hours of labour
ER  -