Columbia subject headings:
Oil sketches--Belgium--Exhibitions.
Rubens, Peter Paul, 1577-1640--Exhibitions.
Harvard subject headings:
Drawing, Belgian--17th century--Catalogs--Exhibitions.
Painting, Belgian--17th century--Catalogs--Exhibitions.
Rubens, Peter Paul, 1577-1640--Catalogs--Exhibitions.
Rubens, Peter Paul, 1577-1640--Criticism and interpretation.
Princeton subject headings:
Oil sketches--Belgium--Exhibitions.
Rubens, Peter Paul, 1577-1640--Exhibitions.