Columbia subject headings:
Harvard subject headings:
German language--Study and teaching--Balkan Peninsula.
German language--Study and teaching--Foreign speakers.
Language teachers--Training of--Balkan Peninsula.
Multilingual education--Balkan Peninsula.
Princeton subject headings:
German language--Study and teaching--Balkan Peninsula.
German language--Study and teaching--Foreign speakers.
Language teachers--Training of--Balkan Peninsula.
Multilingual education--Balkan Peninsula.