00455nam a2200169Ia 4500082002300000100002000023245003800043260002800081300001500109500000500124690000600129700000500135952010400140964001700244921000900261999001500270  a507.20942bC953.CL  aCrowther, J. G.  aCavendish laboratory, 1874-1974b  aLondonbMacmillanc1974  axvi, 464p.  a  a   a  00104070aISIbISId1998-09-02l0o507.20942 C953.CLpDP8785r2019-02-14 00:00:00w2019-02-14yBK  abcdefg  a7869  c7869d7869