000
00249 a2200109 4500
020
_a
9780071321174
245
_a
Communication systems
_c
A Bruce Carlson
250
_a
5th Ed
260
_b
TMH
_c
2011
300
_a
xx, 924p.
100
_a
Carlson A Bruce
_9
369
999
_c
683
_d
683