Programed learning :  A critical evaluation / 
J.L. Hughes (editor). 
 - London :  Sir Isaac Pitman & Sons,  [1967]. 
 - 238 p. ;  23 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>     Programmed instruction.
<br/><br/><label>Dewey Class. No.: </label>371.3944   / PRO