Bjerstedt, A. (Ake), 1930- <br/><br/>
Educational technology :  instructional programming and didakometry / 
Ake Bjerstedt 
 - New York :  Wiley-Interscience,  1972 
 - 300 p. :  ill. ;  25 cm. 
 - Studia Psychologica et paedagogica series altera  16 .
<br/><br/>Bibliography: p. 264-270. 
<br/><br/><label>ISBN: </label>0471076600 
<br/><br/><label>LCCN: </label>72-075617 //r84 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Educational technology