Columbia subject headings:
Harvard subject headings:
German language--Grammar.
German language--Rhythm.
German language--Versification.
Turkish language--Germany.
Turkish language--Influence on German
Turks--Germany--Language.
Princeton subject headings:
German language--Grammar.
German language--Rhythm.
German language--Versification.
Turkish language--Germany.
Turkish language--Influence on German.
Turks--Germany--Language.