Leedham, John and Unwin, Derick <br/><br/>
Programmed learning in the schools 

 - 2nd ed. 
 - London  Longman  1971 
 - xv,140p. 
<br/><br/><label>ISBN: </label> 90 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Education<br/>Learning
<br/><br/><label>Dewey Class. No.: </label>370.1523  / LEE