000 00341pam a2200157a 44500
008 230515b2002 xxu||||| |||| 00| 0 eng d
020 _aNULL
041 _aENGLISH
082 _aN.D.
100 _aBlake
245 _aElectronic communication System
250 _a0
260 _aNULL
_bThomsan
_c2002
300 _a985
650 _aNULL
999 _c587013
_d587013