Riegel E R <br/><br/>
Chemcial process machinery 
Riegel E R 
 - 2 
 -  1953 
 - p.  cm. 
<br/><br/><label>Standard No.: </label>42743 
<br/><br/><label>Source: </label> Textual 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Chemical technology
<br/><br/><label>Dewey Class. No.: </label>Fe, J3