Columbia subject headings:
Harvard subject headings:
Czech language--Grammar, Comparative--German.
German language--Grammar, Comparative--Czech.
German language--Study and teaching (Elementary)
German language--Study and teaching--Foreign speakers.
Second language acquisition.
Princeton subject headings:
Czech language--Grammar, Comparative--German.
German language--Grammar, Comparative--Czech.
German language--Study and teaching (Elementary)
German language--Study and teaching--Foreign speakers.
Second language acquisition.