Open Learning : Systems and problems in post-secondary education/ Norman Mackenzie, Richmond Postgate, John Scupham.
Material type: TextSeries: 498 pPublication details: Paris : UNESCO, 1975 ISBN: 9231013262Subject(s): Enseñanza a distancia- Sistemas de enseñanza abierta | Sistemas de enseñanza abierta- Estudio de casosNo physical items for this record
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