00299nam a2200109Ia 4500082001700000100002300017245003600040260003200076300002700108650002400135650003000159  a011.42 BEV-;  aBeveridge, W. I. B 0aArt of scientific investigation  aLondonbMercury Booksc1950  axii, 178p.: Photograps  aScientific research  aInvestigations - Research