Indexing theory, indexing methods and search devices /
Jonker, Frederick.
New York, Scarecrow Press,
1964.
"[Sponsored by] the Information Research Division of the Air Force Office of Scientific Research by Jonker Business Machines, inc., of Gaithersburg, Maryland, under contract AF-49 (638)961."
Includes bibliographies.
Indexing.
Information storage and retrieval systems.