Perspectives on distance education, Distance education in single and dual mode U 

 - New Delhi  The Commonwealth of Learning  1992 
 - iii, 158 p. 
<br/><br/> Symposium 
<br/><br/><label>ISBN: </label>1895369193 
<br/><br/><label>Dewey Class. No.: </label>374.4  / SYM