Columbia subject headings:
Harvard subject headings:
Applied linguistics--Germany--Congresses.
German language--Grammar, Comparative--Congresses.
Language and languages--Study and teaching--Bilingual method
Multilingualism--Germany--Congresses.
Princeton subject headings:
Applied linguistics--Germany--Congresses.
German language--Grammar, Comparative--Congresses.
Language and languages--Study and teaching--Bilingual method.
Multilingualism--Germany--Congresses.