00482cam a22002054a 4500003001000000005001700010008004100027040002500068041000800093044000800101080000800109100001800117245003000135250001200165260003900177300001100216500001100227650001900238655001900257AR-SsjUIB20250710145602.0250429s1943    xxu           000 0 eng d  aAR-SsjUIBcAR-SsjUIB0 aeng  axxu  a6781 aBarron, Harry10aModern synthetic rubbers.  a2nd ed.  aNew York :bChapman & Hall,c1943.  a355 p.  aLIFBI. 7aCaucho2spines 7aLibro2unescot