000 00449nam a2200181Ia 4500
008 210629s9999 xx 000 0 und d
082 _aNAI, 81 1961
100 _aFRANK, PHILIPP G.
245 4 _aThe validation of scientific theories
245 0 _cFRANK, PHILIPP G.
260 _aNew York
260 _bCollier Books
260 _c1961
300 _a220 pages
546 _aIn English
650 _aSCIENCE-PHILOSOPHY
942 _cBOOK
999 _c1539539
_d1539539