TY  - BOOK
AU  - Maric,D.
TI  - Adapting working hours to modern needs : : the time factor in the a pproach to working conditions / 
PY  - 1977///
CY  - Geneva : 
PB  - International Labour Office, 
KW  - Hours of Labor
N1  -  Includes bibliographical references (p. 47-50)
ER  -