000 00278nam a2200121Ia 4500
100 _aPopper, Karl R.
020 _a0-09-III721-6
942 _cBK
245 _aThe logic of scientific discovery
260 _aHutchinson & co ltd, London
_c1972
082 _a501 Pop
300 _a480
999 _c5049
_d5049