Columbia subject headings:
Art dealers--Flanders--History--To 1500.
Art dealers--Spain--Castile--History--To 1500.
Art, Flemish--Spain--Castile.
Art--Economic aspects--Flanders--History--To 1500.
Art--Economic aspects--Spain--Castile--History--To 1500.
Art--Flanders--Marketing--History--To 1500.
Art--Spain--Castile--Marketing--History--To 1500.
Harvard subject headings:
Art dealers--Flanders--History--To 1500.
Art dealers--Spain--Castile--History--To 1500.
Art, Flemish--Spain--Castile.
Art--Economic aspects--Flanders--History--To 1500.
Art--Economic aspects--Spain--Castile--History--To 1500.
Art--Flanders--Marketing--History--To 1500.
Art--Spain--Castile--Marketing--History--To 1500.
Princeton subject headings:
Art dealers--Flanders--History--To 1500.
Art dealers--Spain--Castile--History--To 1500.
Art, Flemish--Spain--Castile.
Art--Economic aspects--Flanders--History--To 1500.
Art--Economic aspects--Spain--Castile--History--To 1500.
Art--Flanders--Marketing--History--To 1500.
Art--Spain--Castile--Marketing--History--To 1500.