TY  - BOOK
ED  - International Labour Office
ED  - International Labour Organisation.
TI  - Hours of work in coal mines: Forth item on the agenda
AV  - HD5119 .C6 I5
PY  - 1949///
CY  - Geneva
KW  - Coal mines and mining
KW  - Coal miners
KW  - Hours of labor
N1  - At head of title: Report 4. International Labour Organisation. Coal Mines Committee, 3d sess., Pittsburg, Apr. 1949
ER  -