Columbia subject headings:
Database management--Congresses.
Information storage and retrieval systems--Congresses.
Libraries--Automation--Congresses.
Online data processing--Congresses.
Harvard subject headings:
Database management--Congresses
Information storage and retrieval systems--Congresses
Libraries--Automation--Congresses
Online data processing--Congresses.
Princeton subject headings:
Database management--Congresses.
Information storage and retrieval systems--Congresses.
Libraries--Automation--Congresses.
Online data processing--Congresses.