Walker, Edward L <br/><br/>
Conditioning and instrumental learning / 
by Edward L. Walker 
 - Belmont, Ca. :  Brooks/Cole Publishing Co.,  1967 
 - xii, 161 p. :  ill. ;  23 cm. 
<br/><br/>Bibliography: p. 143-154 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Learning, Psychology of<br/>Operant conditioning