Columbia subject headings:
Hours of labor--Europe.
Hours of labor--United States.
Manpower policy.
Unemployment.
Work sharing--Europe.
Work sharing--United States.
Harvard subject headings:
Hours of labor--Europe
Hours of labor--United States
Manpower policy
Unemployment
Work sharing--Europe.
Work sharing--United States.
Princeton subject headings:
Hours of labor--Europe.
Hours of labor--United States.
Manpower policy.
Unemployment.
Work sharing--Europe.
Work sharing--United States.