00430nam a2200169Ia 4500082002000000100002000020245002300040260002800063300000900091500000500100690000600105700000500111952010300116964001700219921000900236999001500245  a510.9bAs823.MG  aAshcroft, T. W.  aMaths and graphsb  aLondonbHeinemannc1965  a75p.  a  a   a  001040708GRaISIbISId1998-09-04l0o510.9 As823.MGpG221r2019-02-14 00:00:00w2019-02-14yBK  abcdefg  a8392  c8392d8392