Silos, hoppers bins and bunkers for storing bulk materials   
ed. by Reinhard H. Wohlbier 
 - Clausthal-Zellerfeld  Trans Tech.  1986 
 - 467p. 
 - Best of bulk solids handling 1981-1985. vol. A/86 .
<br/><br/><label>ISBN: </label>0878490604 
<br/><br/><label>Dewey Class. No.: </label>658.785  / N86