Biekert, E Hellmann, H Ley, H <br/><br/>
ULLMANNS Encyklopadie der technischen Chemie,Band 12 
/ Bartholome, E (et al) 
 - Bergstr  Verlag Chemie  1976 
 - xv, 727 p. 
<br/><br/> Includes Index 
<br/><br/><label>ISBN: </label>3527200126 
<br/><br/><label>Dewey Class. No.: </label>660.3  / ULL