Columbia subject headings:
Harvard subject headings:
Martin, Etienne, 1856-1945--Criticism and interpretation.
Martin, Etienne, 1856-1945--Exhibitions.
Martin, Paul, 1830-1903--Exhibitions.
Martin, Paul, 1830-1903.--Criticism and interpretation.
Provence (France)--In art--Exhibitions.
Princeton subject headings:
Martin, Etienne, 1856-1945--Exhibitions.
Martin, Paul, 1830-1903--Exhibitions.