00408nam a22001337i 4500001001000000005001700010008004100027082001800068100002600086245006300112260004200175300001700217650004000234SXC00049620260819093302.0260101s1961    ii            000 0 eng d  a501 FRA-V222  aFrank, Philipp G, Ed.10aValidation of scientific theories /cFrank, Philipp G, Ed.  abCollier Books Inc., New York,c1961  ap. ;c22 cm. 0aPure sciences - Philosophy & theory