000
00213 a2200097 4500
001
58333
100
_a
245
_a
basic communication theory
260
_a
new york
_b
Prentice hall
_c
1991
090
_c
35821
_d
35821
942
_a
NUST-CAE
_c
_c
28693
999
_c
293406
_d
293406