McMillan, D E <br/><br/>
Reinforcement contingencies maintaining collateral responding under a DRL schedule.  [electronic resource] 

 -  Journal of the experimental analysis of behavior  May 1969 
 - 413-22 p.  digital 
<br/><br/> Publication Type: Journal Article 
<br/><br/><label>ISSN: </label>0022-5002 
<br/><br/><label>Standard No.: </label>10.1901/jeab.1969.12-413  doi