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040 _aMAIN
041 _aEnglish
082 _a668.4
_bWAL
100 _aWalker, O. J.
245 _aPlastics
260 _aLondon
_bLongman
300 _a32p.
650 _aPlastic technology
650 _aPlastics
942 _cBK
999 _c36093
_d36093