000 00340nam a2200121Ia 4500
003 GCL
008 140319s9999 xx 000 0 eng d
040 _aGCL /
_cGCL
082 0 4 _a621.382
_bG P
245 1 0 _aPrinciples of Digital and Analog Communicotions, 2rd ed
260 _a[S.N] :
_bMacmillan Publishing Company ،
_c1993
300 _a576 P
999 _c17248
_d17248