Columbia subject headings:
Computers--Periodicals.
Electronics--Periodicals.
Radio--Periodicals.
Television--Periodicals.
Harvard subject headings:
Computers--Periodicals.
Electronics--Periodicals
Radio--Periodicals
Television--Periodicals
Princeton subject headings:
Computers--Periodicals.
Electronics--Periodicals.
Periodicals.
Radio--Periodicals.
Television--Periodicals.