00265nam a2200097Ia 4500008004000000082001600040100002600056245002900082260004600111300001000157210210b1968   xxu||||| |||| 00| 0 eng d  a300.72 STEH  aSTEPHENS (William N).  aHypotheses and evidence.  aNew York.bThomas Y Crowell companyc1968  ax,223