Vanstone, J. Henry <br/><br/>
The raw materials of commerce 

 - London  Isaac Pitman  1929 
 - v 
<br/><br/> With illustration; In two volumes 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Commercial products<br/>Raw materials
<br/><br/><label>Dewey Class. No.: </label>333.7  / V366r