Beth, Evert Willem <br/><br/>
Mathematical epistemology and psychology 
Evert W. Beth [and] Jean Piaget ; translated from the French by W. Mays. 
 - Netherlands  D. Reidel Publishing Co.  1966. 
 - xxi, 326 p. 
<br/><br/> Translation of : Epistemologie mathematique et psychologie. 
<br/><br/>Includes bibliography and index. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Thought and thinking<br/>Logic, Symbolic and mathematical