Online information retrieval systems
Subtitle: an introductory manual to principles and practice
By: [by] Bernard Houghton and John Convey.
Contributors: Convey, John, 1942-
Publisher: C. Bingley; Linnet Books
Published: 1977
Place of publication: London; Hamden, Conn
Language: eng
Subjects: On-line bibliographic searching.
Notes: Includes index.