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Etudes ouvertes : systemes d'instruction postsecondaire a distance / Norman MacKenzie, Richmond Seymour Postgate, John Scupham. by
Material type: Text Text
Publication details: Paris : Unesco, 1977
Availability: Items available for loan: Biblioteca Mayor (1)Call number: UNESCO 371.4 Et85.

2.
Enseñanza abierta : sistemas de enseñanza postsecundaria a distancia / Norman MacKenzie, Richmond Seymour Postgate, John Scupham. by
Material type: Text Text
Publication details: Paris : Unesco, 1979
Availability: Items available for loan: Biblioteca Mayor (1)Call number: UNESCO 371.4 M113.

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