Viewdata and videotext, 1980-81: A worldwide report 
Subtitle: transcript of Viewdata '80, First World Conference on Viewdata, Videotex, and Teletext
Publisher: Knowledge Industry Publications
Published: 1980
Language: eng
Format: Paperback
Number of pages: 623
ISBN-13: 9780914236771
Subjects: Communication Engineering +; Videotex systems