Columbia subject headings:
Archivi Alinari--Congresses.
Fratelli Alinari--Photograph collections--Congresses.
Photograph collections--Italy--Florence--Congresses.
Harvard subject headings:
Archives--Collection management--Congresses.
Archives--Processing--Congresses.
Fratelli Alinari--Congresses.
Photograph collections--Congresses.
Photography museums--Congresses.
Princeton subject headings:
Archivi Alinari--Congresses.
Fratelli Alinari--Photograph collections--Congresses.
Photograph collections--Italy--Florence--Congresses.