Columbia subject headings:
Grammar, Comparative and general--Early works to 1800--Bio-bibliography.
Language and languages--Early works to 1800--Bio-bibliography.
Harvard subject headings:
Grammar, Comparative and general--Early works to 1800--Bio-bibliography.
Language and languages--Early works to 1800--Bio-bibliography.
Princeton subject headings:
German language--Bibliography.
Linguistics--Bibliography.
Linguists--Bio-bibliography.