Columbia subject headings:
Document delivery--Congresses.
Electronic publishing--Congresses.
Libraries--Automation--Congresses.
Library science--Data processing--Congresses.
Library science--Technological innovations--Congresses.
Harvard subject headings:
Document delivery--Congresses.
Electronic publishing--Congresses
Libraries--Automation--Congresses
Library science--Data processing--Congresses
Library science--Technological innovations--Congresses
Princeton subject headings:
Document delivery--Congresses.
Electronic publishing--Congresses.
Libraries--Automation--Congresses.
Library science--Data processing--Congresses.
Library science--Technological innovations--Congresses.