00476nam a2200169 a 450000500170000002000150001708200210003210000150005324500560006826000280012430000170015269000110016996400250018099700180020599900170022395200660024020251203091516.0  a0582034957  a541.224,bD, duf  aDuffy, J.A  aBonding,Energy levels and bands in inorganic solids  aNew YorkbLongmanc1990  ax,248p, 22cm  aSolids  bEngc100de010fg_  a61263 LIBSC C  c42599d42599  00104070aPUbPUd1998-04-08l0o541.224, D, dufp61263yBK