Columbia subject headings:
Art--Historiography--Congresses.
Art--Research--Methodology--Congresses.
Photograph collections--Congresses.
Harvard subject headings:
Art--Historiography--Congresses
Art--Research--Methodology--Congresses.
Photograph collections--Congresses.
Photography of art--Congresses.
Photography--Archives--Congresses.
Princeton subject headings:
Art--Historiography--Congresses.
Art--Research--Methodology--Congresses.
Photograph collections--Congresses.