TY  - BOOK
ED  - International Labor Office.
TI  - Wages And Hours Of Work In The Coal-mining Industry
T2  - STUDIES AND REPORTS series D (Wigs Hours of Work )  ; 
U1  - 331.21 21
PY  - 1928///
CY  - Geneva
PB  - [Impr. du Journal de Genève]
KW  - Wages
KW  - Coal-mining
KW  - Labor economics
KW  - qrmak
N1  - Includes bibliographical references

UR  - https://fll.law.cu.edu.eg/fulltext/bks/B13-10262pdf
ER  -