Columbia subject headings:
Artificial satellites in telecommunication--Dictionaries.
Cable television--Dictionaries.
Television broadcasting--Dictionaries.
Video tapes--Dictionaries.
Harvard subject headings:
Artificial satellites in telecommunication--Dictionaries.
Cable television--Dictionaries.
Television broadcasting--Dictionaries.
Video tapes--Dictionaries.
Princeton subject headings:
Artificial satellites in telecommunication--Dictionaries.
Cable television--Dictionaries.
Television broadcasting--Dictionaries.
Video tapes--Dictionaries.