Viewdata
Subtitle: a public information utility
By: Adrian V. Stokes.
Edition: 2d ed. --
Series: Langton Information Systems series
Publisher: Input Two-Nine
Published: 1980
Place of publication: [Purley, Eng.]
Language: eng
Number of pages: 133
Subjects: Teletext systems.
Notes: Includes index.

Bibliography: p. 121-124.