000 00348pam a2200157a 44500
008 230515b1983 xxu||||| |||| 00| 0 eng d
020 _aNULL
041 _aENGL
082 _a621.38 /SMA
100 _aSMALE P.H.
245 _aTELECOMMUNICATION SYSTEMS
250 _aN.D.
260 _aNULL
_bWHEEL
_c1983
300 _a121 PB
650 _aNULL
999 _c620653
_d620653