Columbia subject headings:
Feininger, Laurence K. J. (Laurence Karl Johann), 1909-1976--Congresses.
Music--Manuscripts--Italy--Trento--Congresses.
Trent codices--Congresses.
Harvard subject headings:
Feininger, Laurence K. J. (Laurence Karl Johann), 1909-1976--Congresses.
Trent codices--Congresses.
Princeton subject headings:
Feininger, Laurence K. J. (Laurence Karl Johann), 1909---Congresses.
Music--Manuscripts--Italy--Trento--Congresses.
Trent codices--Congresses.