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082 _a104 R911O
100 _aRUSSELL BERTRAND
245 0 _aOUR KNOWLEDGE OF THE EXTERNAL WORLD AS A FIELD FOR SCIENTIFIC METHOD IN PHILOSOPHY
260 _aLONDON
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300 _a251
690 _aPHILOSOPHY-ESSAYS
942 _cBK
999 _c6950
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