Riggleman John R <br/><br/>
Business statistics 

 - 2 
 -  1938 
<br/><br/><label>Source: </label> General Book 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Statistics
<br/><br/><label>Dewey Class. No.: </label>B280bX, G8;1