Columbia subject headings:
Harvard subject headings:
German language--Middle High German, 1050-1500--Glossaries, vocabularies, etc.
German language--Old High German, 750-1050--Glossaries, vocabularies, etc.
German literature--Middle High German, 1050-1500
German literature--Old High German, 750-1050
Princeton subject headings:
German literature--Middle High German, 1050-1500.
German literature--Old High German, 750-1050.