Theoretical principles of distance education /
edited by Desmond Keegan.
- London ; New York : Routledge, 1993.
- xiii, 272 p. : ill. ; 22 cm.
- Routledge studies in distance education .
Includes bibliographical references and index.
0415089425
Distance education
Education--Aims and objectives
Educational technology
LC5800 / .T46 1993
Includes bibliographical references and index.
0415089425
Distance education
Education--Aims and objectives
Educational technology
LC5800 / .T46 1993