Columbia subject headings:
Dŭbova, Zlatka, 1927-1997--Catalogs.
Engraving--Bulgaria--Catalogs.
Lithography--Bulgaria--20th century--Catalogs.
Wood-engraving, Bulgarian--20th century--Catalogs.
Harvard subject headings:
Princeton subject headings:
Catalogs.
Dŭbova, Zlatka, 1927-1997--Catalogs.
Engraving, Bulgarian--20th century--Catalogs.
Lithography, Bulgarian--20th century--Catalogs.
Monotype (Engraving), Bulgarian--20th century--Catalogs.
Wood-engraving, Bulgarian--20th century--Catalogs.