000 00368pam a2200133a 44500
008 160408b1973 xxu||||| |||| 00| 0 eng d
082 _a530.41
_bT665
100 _aTownsend, P.D.
245 1 _aCOLOUR CENTRES AND IMPERFECTIONS IN INSULATORS AND SEMICONDUCTORS
260 _a
_bChatto & Windus
_c1973
700 _aKelly, J.C.
964 _gCIRC
997 _aA33530 C
999 _c242874
_d242874