Ullmann's encyclopedia of industrial chemistry / 
 Encyclopedia of industrial chemistry 
editorial advisory board, Matthias Bohnet [and others] 
 - Sixth, completely revised edition. 
 - 40 volume :  illustrations ;  25 cm. 
<br/><br/>Includes bibliographical references and index 
<br/><br/><label>ISBN: </label>3527303855 (set : acid-free paper) 9783527303854 (set) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Chemical engineering--Encyclopedias.<br/>Chemistry, Technical--Encyclopedias.