Hayes John R <br/><br/>
Complete problem solver. 

 - Philadelphia  Franklin Institute        1981 
 - v,255p.  cm. 
<br/><br/><label>Standard No.: </label>34291 
<br/><br/><label>Source: </label> Textual 
<br/><br/><label>Dewey Class. No.: </label>S:44, M1