International Rubber Study Group   <br/><br/>
Summary of Proceedings of the Nineteenth Assembly, Sao Paulo, 16th-21st October, 1967  (Book) 

 - London  International Rubber Study Group  1967 
 - 126p.  28 cm. 
<br/><br/><label>Universal Decimal Class. No.: </label>678:061.3(100) IRSG  / 1871