000 00443nam a2200181Ia 4500
008 141214s9999 sy 000 0 eng d
020 _a0-582525829
082 _a621,381
100 1 _awell,g.w.
_92219
245 1 _aelectronics and communications\
_cg.w well.
260 _ahong kong:
260 _blongman group,
260 _c1970.
300 _a92p.;
300 _c24cm.
650 _a Technology.
_92171
942 _2ddc
_cBK
999 _c266333
_d266333