Columbia subject headings:
Electronic data processing--Periodicals.
Information retrieval--Periodicals.
Information storage and retrieval systems--Periodicals.
Harvard subject headings:
Electronic data processing--Periodicals
Information retrieval--Periodicals.
Information storage and retrieval systems--Periodicals
Princeton subject headings:
Electronic data processing--Periodicals.
Information retrieval--Periodicals.
Information storage and retrieval systems--Periodicals.
Periodicals.