Leedham, John <br/><br/>
Programmed learning in the schools / 
John Leedham, Derick Unwin. 
 - 2nd ed. 
 - London:   Longman,   1971.  
 - xv, 140 p. :  ill. ;  20 cm. 
 - Education today .
<br/><br/>Includes bibliography: p. 133-134 and index. 
<br/><br/><label>ISBN: </label>0582320917 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Programmed instruction
<br/><br/><label>Dewey Class. No.: </label>371.3944