Columbia subject headings:
Johnstone, Mildred T.--Exhibitions.
Tapestry--Pennsylvania--Allentown--Exhibitions.
Harvard subject headings:
Allentown Art Museum--Exhibitions.
Johnstone, Mildred T.--Catalogs.
Johnstone, Mildred T.--Exhibitions.
Needlework--Exhibitions
Steel industry and trade in art--Exhibitions.
Tapestry--Pennsylvania--Allentown--Exhibitions.
Tapestry--United States--Exhibitions.
Princeton subject headings:
Catalogs.
Johnstone, Mildred T.--Catalogs.
Needlework--Exhibitions.
Steel industry and trade in art--Exhibitions.
Tapestry--United States--Exhibitions.