000
00290nam a2200121 a 4500
003
EIA
001
10084
942
_0
2
_2
ddc
_c
BK
245
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Digital and analog communication systems. - 7 ed.
260
_c
2007
008
141112s2007 ck r 000 u spa d
082
_a
621.3822
_b
C853
_c
7ed
999
_c
3300
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3300