Columbia subject headings:
LeFrak, Ethel--Art collections--Catalogs.
LeFrak, Samuel J.--Art collections--Catalogs.
Painting, American--New York (State)--New York--19th century--Private collections--Catalogs.
Painting, American--New York (State)--New York--20th century--Private collections--Catalogs.
Harvard subject headings:
Art, French--19th century--Catalogs
Art, French--20th century--Catalogs
Art, Modern--19th century--Catalogs
Art, Modern--20th century--Catalogs
Art--Private collections--New York (State)--New York--Catalogs
Le Frak, Samuel J.--Art collections--Catalogs.
LeFrak, Ethel--Art collections--Catalogs.
Painting, Modern--19th century--Catalogs
Painting, Modern--20th century--Catalogs
Painting--New York (State)--New York--Catalogs
Princeton subject headings:
Art, French--19th century--Catalogs.
Art, French--20th century--Catalogs.
Art, Modern--19th century--Catalogs.
Art, Modern--20th century--Catalogs.
Art--Private collections--New York (State)--New York--Catalogs.
Catalogs.
LeFrak, Ethel--Art collections--Catalogs.
LeFrak, Samuel J.--Art collections--Catalogs.