Rubber Manufacturers Association   <br/><br/>
International standards of quality and packing for natural rubber grades: the green book  (Book) 

 - Washington, D.C.  International Rubber Quality and Packing Conferences  1969 
 - 20 p.  28 cm. 
<br/><br/><label>Universal Decimal Class. No.: </label>678.4.004.3: 798 (083.7) INT  / 13668