Two modes of information retrieval
Subtitle: a compact, bibliographic distinction between the question answering systems and literature searching systems
By: [by] Donald P. Grant.
Publisher: [Council of Planning Librarians]
Published: 1973
Place of publication: Monticello, Ill
Language: eng
Number of pages: 12
Subjects: Information storage and retrieval systems
Notes: Bibliography: p. 10-11.
Cover title.