Campbell, B A <br/><br/>
Effects of age on long-term memory: retention of fixed interval responding.  [electronic resource] 

 -  Journal of gerontology  May 1981 
 - 338-41 p.  digital 
<br/><br/> Publication Type: Journal Article; Research Support, U.S. Gov't, P.H.S. 
<br/><br/><label>ISSN: </label>0022-1422 
<br/><br/><label>Standard No.: </label>10.1093/geronj/36.3.338  doi 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Aging<br/>Animals<br/>Conditioning, Psychological<br/>Male<br/>Memory<br/>Rats<br/>Rats, Inbred F344<br/>Retention, Psychology