Columbia subject headings:
Developing countries--Commerce--Germany (West)
Electric industries--Germany (West)
Germany (West)--Commerce--Developing countries.
Harvard subject headings:
Developing countries--Commerce--Germany (West)
Electric industries--Germany (West)
Germany (West)--Commerce--Developing countries.
Princeton subject headings:
Developing countries--Commerce.
Electric industries--Germany, West.
Germany (West)--Commerce.