Columbia subject headings:
Collective bargaining--International business enterprises.
Communication and traffic--Employees--Labor unions.
Labor unions--Communication and traffic.
Labor unions--Service industries workers.
Labor unions--White collar workers.
Service industries workers--Labor unions.
White collar workers--Labor unions.
Harvard subject headings:
Collective bargaining--International business enterprises.
Communication and traffic--Employees--Labor unions
International labor activities.
Service industries workers--Labor unions.
White collar workers--Labor unions.
Princeton subject headings:
Collective bargaining--International business enterprises.
Communication and traffic--Employees--Labor unions.
Service industries workers--Labor unions.
White collar workers--Labor unions.