00356nam a2200157Ia 4500008004100000020001800041035001000059082001300069100001800082245003400100250000600134260003400140300000800174500001000182650000600192210723s9999||||xx |||||||||||||| ||und||  a0 09 111721 6  a27321  a501BPOP  aPopper, K. R. 0aLogic Of Scientific Discovery  a-  aLondonbHutchinson & Co. Ltd.  a480  a21636  a-