Columbia subject headings:
Harvard subject headings:
German language--Study and teaching--Hungarian speakers--History--Bibliography.
German language--Textbooks for foreign speakers--Hungarian--Bibliography.
Princeton subject headings:
German language--Grammar, Comparative--Hungarian--Bibliography.
German language--Study and teaching--Hungary--History--Bibliography.
German language--Topic and comment--Bibliography.
Hungarian language--Grammar, Comparative--German--Bibliography.
Hungarian language--Topic and comment--Bibliography.