000 00250nam a2200109Ia 4500
008 220201s1997 xx 000 0 eng d
100 _aDYSON, R.W.
245 0 _aSPECIALLY POLYMERS
260 _aLONDEN
_bCHOPNHAD
_c1997
300 _a186
942 _2ddc
999 _c67750
_d67750