000 00293nam a22001097a 4500
020 _a0710065078
082 _a121
_bKAR.C
100 _aKARL R POPPER
245 _aCONJECTURES AND REFUTATIONS
_bTHE GROWTH OF SCIENTIFIC KNOWLEDGE
260 _aLONDON
_bROUTLEDGE & KEGAN PAUL
_c1963
942 _cBK
999 _c472866
_d472866