Strategies for programmed instruction :  an educational technology / 
edited by J. Hartley 
 - London :  Butterworths,  1972 
 - xii, 231 p. :  ill. ;  23 cm. 
<br/><br/>Bibliography: p. 209-224 
<br/><br/><label>ISBN: </label>0408702524 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Educational technology<br/>Programmed instruction
<br/><br/><label>Dewey Class. No.: </label>371.3944