Flesh, Rudolf. <br/><br/>
The art of clear thinking / 
Rudolf Flesh. 
 - New York :   Harper & Row,    c 1951. 
 - 212 p. :  ills. ;  22 cm. 
<br/><br/>Bibliography: p.181-182 and index. 
<br/><br/>304  304 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Thought and thinking--Logic.
<br/><br/><label>Dewey Class. No.: </label>153 / F631a