Columbia subject headings:
Harvard subject headings:
Electronic data processing--Germany (West)--Management--History--20th century.
Electronic data processing--Germany--Management--History--20th century.
Information retrieval--Germany (West)--History--20th century.
Information retrieval--Germany--History--20th century.
Information storage and retrieval systems--Humanities--History--20th century.
Princeton subject headings:
Electronic data processing--Germany (West)--Management--History--20th century.
Electronic data processing--Germany--Management--History--20th century.
Information retrieval--Germany (West)--History--20th century.
Information retrieval--Germany--History--20th century.
Information storage and retrieval systems--Humanities--History--20th century.