The concept of educational technology :  a dialogue with yourself / 
edited by W. Kenneth Richmond 
 - London :  Weidenfeld and Nicolson,  1970 
 - viii, 254 p. :  ill. ; plan.  23 cm. 
<br/><br/>Includes bibliographical references. 
<br/><br/><label>ISBN: </label>0297001124 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Educational technology