Columbia 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.
Harvard subject headings:
Electric industries--United States--History--Archival resources.
Electrical engineering--United States--History--Archival resources.
Engineering--United States--History--Archival resources.
Engineers--United States--Biography--Archival resources.
Princeton subject headings: