Columbia subject headings:
Drawing, Argentine--20th century.
Grela, Juan--Catalogs.
Prints, Argentine--20th century.
Wood-engraving, Argentine--20th century.
Harvard subject headings:
Art, Argentine--20th century--Catalogs.
Grela, Juan--Catalogs.
Princeton subject headings:
Art, Argentine--20th century.
Catalogs.
Graphic arts--Argentina--20th century.
Grela, Juan, 1914---Catalogs.