Bates A. W. <br/><br/>
Technology E-learning and Distance Education 

 - 2th ed. 
 - New York  Routledge Taylor & Francis Gr  oup        2005 
 - x, 246p. 
<br/><br/><label>ISBN: </label>415284376 
<br/><br/><label>Dewey Class. No.: </label>371.33