Riegel, Emil Raymond . <br/><br/>
Chemical Machinery /  Textual Documents 
Emil Raymond Riegel. 
 - 1st ed. / 
 - New York :  Reinhold Publishing Co. ,  ©1944. 
 - vii,583p. :  ill ;  22cm . 
<br/><br/>Index 
<br/><br/><label>Subjects--Index Terms: </label>Chemical Machinery G-Technology 
<br/><br/><label>Dewey Class. No.: </label>660  / R 443 C