00401nam a2200121Ia 4500082001800000100008100018245007600099260004500175300002100220500000500241653000600246700002700252  a501bSy989.SS  aSymposium on the Structure of Scientific Theories, Urbana, March 26-29, 1969  aThe structure of scientific theories; 2d. ed.bcEd. by Frederick Suppe  aChicagobIllinois University Pressc1977  axiv, 818p. Index  a  a   aSuppe, Frederick ; ed.