Distance education :  international perspectives / 
edited by David Sewart, Desmond Keegan and Borje Holmberg 
 - London :  Croom Helm,  1983 
 - 45 p. :  ill. ;  22 cm. 
<br/><br/><label>ISBN: </label>070991525X 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Correspondence schools and courses