Becker, Wesley C.,   1928- <br/><br/>
Instructor's Manual Teaching 1 :   classroom management, and Teaching 2 : cognitive learning and instruction / 
Wesley C. Becker, Siegfried Engelmann, Don R. Thomas. 
 - Chicago :  Science Research Associates, Inc.,  c1975. 
 - 123 p. ;  23 cm. 
<br/><br/><label>ISBN: </label>0574180265 
<br/><br/><label>Dewey Class. No.: </label>371.1  / BEC