Neuringer, A J <br/><br/>
Superstitious key pecking after three peck-produced reinforcements.  [electronic resource] 

 -  Journal of the experimental analysis of behavior  Mar 1970 
 - 127-34 p.  digital 
<br/><br/> Publication Type: Journal Article 
<br/><br/><label>ISSN: </label>0022-5002 
<br/><br/><label>Standard No.: </label>10.1901/jeab.1970.13-127  doi