Columbia subject headings:
Music--Manuscripts--Facsimiles.
Rochberg, George--Manuscripts--Facsimiles.
String quartets--Scores.
Harvard subject headings:
Rochberg, George--Manuscripts--Facsimiles.
String quartets--Scores.
Princeton subject headings:
Rochberg, George--Manuscripts--Facsimiles.
Scores.
String quartets--Scores.