000
00262nam a22001217a 4500
020
_a
978-0071321174
100
_a
CARLSON A. BRUCE
245
_a
COMMUNICATION SYSTEMS
250
_a
5TH
260
_a
NEW DELHI
_b
MGH
_c
2010
300
_a
XX, 924P
942
_c
BK
999
_c
8737
_d
8737