Columbia subject headings:
Harvard subject headings:
Electrical engineering--Archival resources--Catalogs.
Electrical engineering--History--Sources--Bibliography--Catalogs.
Electronics--Archival resources--Catalogs.
Electronics--History--Sources--Bibliography--Catalogs.
Princeton subject headings:
Electrical engineering--Archival resources--United States--Catalogs.
Electrical engineering--United States--History--Sources--Bibliography--Catalogs.
Electronics--Archival resources--United States--Catalogs.
Electronics--United States--History--Sources--Bibliography--Catalogs.