Publication

1981 - CET, London, United Kingdom

Language

English

Word Count

7,250 words, Guess

Page Count

29 pages

Identifiers

  • ISBN-100861840550
  • ISBN-139780861840557
  • Open LibraryOL20628602M

Classifications

  • DDC371.3/35
  • LCCLB1028.43

Subjects

Topics

EducationInformation servicesPrestel (Data transmission system)Viewdata (Data transmission system)Education -- Information services -- Great Britain

Places

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