Hughes, J. L. <br/><br/>
Programed learning  : a critical evaluation 

 - London  ; Sir Isaac Pitman & Sons  , 1960 
 - 238p. 
<br/><br/><label>ISBN: </label> 45 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Education<br/>Learning
<br/><br/><label>Dewey Class. No.: </label>370.1523  / HUG