000
00311nam a22001337a 4500
020
_a
9788131705735
082
_a
621.382 PRO
100
_a
Proakis G John
245
_a
Fundamentals of Communication Systems
260
_a
New Delhi
_b
Pearson
_c
2007
300
_a
858
650
_a
Applied physics
942
_c
BK
999
_c
6514
_d
6514