Denny, M R <br/><br/>
One bar-press per day: acquisition and extinction.  [electronic resource] 

 -  Journal of the experimental analysis of behavior  Jan 1959 
 - 81-5 p.  digital 
<br/><br/> Publication Type: Journal Article 
<br/><br/><label>ISSN: </label>0022-5002 
<br/><br/><label>Standard No.: </label>10.1901/jeab.1959.2-81  doi