000 00305nam a22001337a 4500
020 _a0713134577
082 _a621.385
_bCON/MOD
100 _aConnor, F. R.
_94159
245 _aModulation
250 _a2nd ed.
260 _aLondon :
_bEdward Arnold,
_cc1982.
300 _aviii, 133 p.:
_b[E23]
942 _cBK
999 _c3735
_d3735