McDevitt, M A <br/><br/>
Establishing operations and the discriminative stimulus.  [electronic resource] 

 -  The Behavior analyst  1993 
 - 225-7 p.  digital 
<br/><br/> Publication Type: Journal Article 
<br/><br/><label>ISSN: </label>0738-6729 
<br/><br/><label>Standard No.: </label>10.1007/BF03392628  doi