Columbia subject headings:
Harvard subject headings:
Astronomy--Information services--Congresses.
Information storage and retrieval systems--Astronomy--Congresses.
Special libraries--Congresses.
Watson, Joyce Rey, 1922-2001.
Princeton subject headings:
Astronomy--Information services--Congresses.
Information storage and retrieval systems--Astronomy--Congresses.
Special libraries--Congresses.
Watson, Joyce Rey, 1922-2001.