Columbia subject headings:
Calligraphy--Exhibitions.
Haas, Robert, 1898-1997--Exhibitions.
Photography--Exhibitions.
Printing--Exhibitions.
Harvard subject headings:
Calligraphy--Exhibitions
Haas, Robert, 1898-1997--Exhibitions.
Photography--Exhibitions
Printing--Exhibitions
Princeton subject headings:
Calligraphy--Exhibitions.
Haas, Robert, 1898-1997--Exhibitions.
Photography--Exhibitions.
Printing--Exhibitions.