Columbia subject headings:
Children of foreign workers--Germany (West)--Language.
German language--Study and teaching (Elementary)--Foreign speakers.
Second language acquisition.
Harvard subject headings:
Children of foreign workers--Germany (West)--Language.
German language--Study and teaching (Elementary)--Foreign speakers.
Second language acquisition.
Princeton subject headings:
Children of foreign workers--Education--Germany (West)
Children of immigrants--Education--Germany (West).
German language--Study and teaching (Elementary)--Foreign speakers.
German language--Vocabulary.
Second language acquisition.