00305nam a2200109Ia 4500082002300000100003600023245005000059260002900109300002100138500000500159700003100164  a519.90184bC454.SR  aChanan Singh and Billinton, Roy  aSystem reliability modelling and evaluationb  aLondonbHutchinsonc1977  avii, 248p. Index  a  aBillinton, Roy ; jt. auth.