HEIDBREDER, E <br/><br/>
The attainment of concepts; the problem.  [electronic resource] 

 -  The Journal of general psychology  Oct 1946 
 - 191-223 p.  digital 
<br/><br/> Publication Type: Journal Article 
<br/><br/><label>ISSN: </label>0022-1309 
<br/><br/><label>Standard No.: </label>10.1080/00221309.1946.10544557  doi 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Humans