Columbia subject headings:
Eddy, G. Norman--Musical instrument collections.
Eddy, Ruth, 1908-1991--Musical instrument collections.
Musical instruments--Catalogs and collections--Massachusetts--Cambridge.
Harvard subject headings:
Eddy, G. Norman--Musical instrument collections.
Eddy, Ruth, 1908-1991--Musical instrument collections.
Musical instruments--Catalogs and collections--Massachusetts--Cambridge.
Princeton subject headings:
Eddy, G. Norman--Musical instrument collections.
Eddy, Ruth, 1908-1991--Musical instrument collections.
Musical instruments--Catalogs and collections--Massachusetts--Cambridge.