Keegan, D <br/><br/>
Foundations distance education/ 

 - 3rd ed 
 - new york   taylor& francis grounds  1996 
 - xii, 224p, ; ill  pbk 
<br/><br/><label>ISBN: </label>0415139090 
<br/><br/><label>LC Class. No.: </label>LC5800.K43 1996