Hineline, P N <br/><br/>
Negative reinforcement without shock reduction.  [electronic resource] 

 -  Journal of the experimental analysis of behavior  Nov 1970 
 - 259-68 p.  digital 
<br/><br/> Publication Type: Journal Article 
<br/><br/><label>ISSN: </label>0022-5002 
<br/><br/><label>Standard No.: </label>10.1901/jeab.1970.14-259  doi