Distance learning :  principles for effective design, delivery, and evaluation / 
Chandra Mohan Mehrotra, C. David Hollister, Lawrence McGahey. 
 - Usa:   Sage Publications,   [2001].  
 - 242p. ;  23cm. 
<br/><br/>Includes index. 
<br/><br/><label>ISBN: </label>0761920897 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Distance education<br/>Education, Higher
<br/><br/><label>Dewey Class. No.: </label>378.175