Columbia subject headings:
Data transmission systems--Congresses.
Documentation--Congresses.
Information science--Congresses.
Information services--Congresses.
Information storage and retrieval systems--Congresses.
Harvard subject headings:
Data transmission systems--Congresses.
Documentation--Congresses.
Information science--Congresses
Information services--Congresses.
Information storage and retrieval systems--Congresses
Princeton subject headings:
Data transmission systems--Congresses.
Documentation--Congresses.
Information science--Congresses.
Information services--Congresses.
Information storage and retrieval systems--Congresses.