00317nam a2200121Ia 4500082001700000100000700017245011800024250001000142260002700152300000600179500000500185700000500190  a509.2bAm512  ad  aAmerican men and women of scienceba biographical directory founded in 1906; the physical and biological sciences  a12th.  aNew YorkbBowkerc1971  a   a  a