TY  - BOOK
ED  - International Labour Office
TI  - Hours of labour in industry.  Switzerland
T2  - Its Studies and reports, Series D (Wages and hours)
AV  - HD4813 .I4 ser. D, no. 9
PY  - 1923///]
CY  - Geneva
KW  - Hours of labor
KW  - Switzerland
KW  - Labor and laboring classes
N1  - At head of title: International labour office
ER  -