00389nam a2200145Ia 4500003000900000005001700009008004100026040001600067080001700083100001700100245008200117260001900199300001000218700001500228IN-BaIIA20230707110856.0211028s9999    xx            000 0 eng d  cIIA Library  a042: 53bBRA  aBragg, W. L. 0aIndex to the royal institution library of sciencecW. L. Bragg and G. Porter   bElsevierc1970  a226p.  aPorter, G.