Carroll, Marilyn E. <br/><br/>
Income alters the relative reinforcing effects of drug and nondrug reinforcers 

 - Cambridge, Mass :  National Bureau of Economic Research,  1998 
 - 26 
<br/><br/><label>Subjects--Topical Terms: </label><br/>DRUG ADDICTION--ECONOMIC ASPECTS<br/>INCOME<br/>ECONOMICS--RESEARCH
<br/><br/><label>LC Class. No.: </label>RC564  / C377I