Holmberg, Brje <br/><br/>
On the status of distance education in the world in the 19805 :  a preliminary report on the fernuniversitt comparative study / 
Brje Holmberg 
 - [S.l.] :  ZIFF,  1985 
 - 29 h. 
<br/><br/> Fotostáticas 
<br/><br/><label>Encabezamiento--Tema: </label><br/>Educación a distancia