Holmberg, Borje <br/><br/>
Theory and Practice of Distance Education 

 - London:  Routledge,  1989. 
 - xi,251p.  22 cm. 
<br/><br/><label>ISBN: </label>0-415-00996-0 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Adult Education
<br/><br/><label>Dewey Class. No.: </label>374  / HOL