00418nam a2200157Ia 4500003000900000008004100009020000700050040001600057080001100073100001900084245009900103260001700202300001000219650001900229650001200248IN-BaIIA211028s9999    xx            000 0 eng d  aNO  cIIA Library  a5bPOP  aPopper, Karl R 4aThe logic of scientific discoverycKarl R Popper                                                aLondonc1960  a479p.  aNASA Thesaurus  aScience