B.E. Douda ,Chairman <br/><br/>
Thirty-Fifty International Pyrotechnics Seminar July 13-18 ,2008 
B.E. Douda ,Chairman 
 - U.S.A  IPSUSA  2008 
 - 749P 
<br/><br/><label>Dewey Class. No.: </label>271 I 649 T