Columbia subject headings:
Harvard subject headings:
Commercial correspondence, German.
Commercial correspondence, Turkish.
German language--Business German.
Germany--Commerce--Turkey.
Language and languages--Economic aspects
Turkey--Commerce--Germany.
Turkish language--Business Turkish.
Princeton subject headings:
Commercial correspondence, German.
Commercial correspondence, Turkish.
German language--Business German.
Germany--Commerce--Turkey.
Language and languages--Economic aspects.
Turkey--Commerce--Germany.
Turkish language--Business Turkish.