WENZEL, B M <br/><br/>
Notes on a positive, nonalimentary reinforcer.  [electronic resource] 

 -  Journal of the experimental analysis of behavior  Oct 1959 
 - 288 p.  digital 
<br/><br/> Publication Type: Journal Article 
<br/><br/><label>ISSN: </label>0022-5002 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Humans<br/>Learning