000 00330nam a2200145Ia 4500
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082 _a500 Al53W
100 _aAllen, Kenneth.
245 0 _aWhat do you know
260 _aLondn
_bHamlyn
_c1972
300 _a320p.
690 _aSCIENCE
942 _cBK
999 _c47829
_d47829