Open learning in the mainstream 

 - London:  Longman,  1994. 
 - 350p 
<br/><br/> Includes index 
<br/><br/><br/>eng 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Distance education
<br/><br/><label>Dewey Class. No.: </label>378.03  / OPE