Columbia subject headings:
Harvard subject headings:
Canons, fugues, etc. (String quartet)--19th century--Scores.
Chamber music--Germany--18th century--Scores.
Chamber music--Germany--19th century--Scores.
Chamber music.
Fugues.
String quartets--Germany--18th century--Scores.
String quartets--Germany--19th century--Scores.
Princeton subject headings:
Scores.
String quartets--Scores.