TY  - BOOK
ED  - International Labour Office.
ED  - International Labor Conference
TI  - Reduction of hours of work in coal mines
AV  - HD5119.M6 I5 1939a
PY  - 1939///
CY  - Geneva
PB  - International Labour Office
KW  - Hours of labor
KW  - Coal mines and mining
N1  - At head of title: Report VI. International Labour Conference. Twenty-fifth session, Geneva, 1939
ER  -