Becker, Wesley C. <br/><br/>
Teaching / 
Wesley C. Becker, Siegfried Engelmann, Don. R. Thomas. 
 - Chicago :  Science Research Associates,  1975. 
 - viii, 263 p. :  ill. ;  26 cm. 
<br/><br/>Includes bibliography and index. 
<br/><br/> Open access. 
<br/><br/><label>ISBN: </label>0574180303 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Educational psychology--Programmed instruction.