00453nam a22001337a 4500008004100000040005500041080002700096245007800123250001200201260005700213300001000270650001800280653002100298230613b        |||||||| |||| 00| 0 eng d  aNational Science LibrarycNational Science Library  aR 621.039.8(058.7)bK4  aInternational directory of Isotopesc/ International Atomic Energy Agency  a3rd ed.  aVienna: bInternational Atomic Energy Agency, c1964  a483p.  aRadioisotopes  aHot laboratories