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Theoretical principles of distance education / edited by Desmond Keegan.

Contributor(s): Material type: TextTextSeries: Routledge studies in distance educationPublication details: London ; New York : Routledge, 1993.Description: xiii, 272 p. : ill. ; 22 cmISBN:
  • 0415089425
  • 9780415089425 :
Subject(s): DDC classification:
  • 374.4

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