Columbia subject headings:
Harvard subject headings:
Collective labor agreements--Electric industries--Germany.
Collective labor agreements--Metal industry--Germany.
Wages and labor productivity--Germany.
Wages--Electric industry workers--Germany.
Wages--Metal-workers--Germany.
Princeton subject headings:
Collective labor agreements--Germany.
Industrial organization--Germany.
Wages--Electric industry workers--Germany.
Wages--Germany.
Wages--Metal-workers--Germany.