Teaching and learning at a distance :
Teaching and learning at a distance : foundations of distance education /
Michael Simonson ... [et al].
- 4th ed.
- Boston : Allyn & Bacon, 2009.
- xix, 374p. ill, 24 cm.
Includes bibliographical references and index.
9780135137765
Distance education.
LC5800.T4 2009
Includes bibliographical references and index.
9780135137765
Distance education.
LC5800.T4 2009