000 00246nam a22000977a 4500
008 150910b xxu||||| |||| 00| 0 eng d
020 _a0333602285
100 _aOGBONNA, O.D.
245 _aINTRODUCTORY TECHNOLOGY.
260 _aLONDON;
_bMACMILLAN
_c1993.
999 _c2737
_d2737