Bernstein, D J <br/><br/>
Reinforcement and substitution in humans: a multiple-response analysis.  [electronic resource] 

 -  Journal of the experimental analysis of behavior  Nov 1978 
 - 243-53 p.  digital 
<br/><br/> Publication Type: Journal Article 
<br/><br/><label>ISSN: </label>0022-5002 
<br/><br/><label>Standard No.: </label>10.1901/jeab.1978.30-243  doi