Columbia subject headings:
Science and technology libraries--Congresses.
Science--Information services--Congresses.
Technology--Information services--Congresses.
Harvard subject headings:
Information storage and retrieval systems--Science--Congresses.
Information storage and retrieval systems--Technology--Congresses.
Science and technology libraries--Congresses.
Science--Information services--Congresses
Science--Library resources--Congresses.
Technology--Information services--Congresses
Technology--Library resources--Congresses.
Princeton subject headings: