000
00289nam a2200121Ia 4500
008
230718s9999||||xx |||||||||||||| ||und||
082
_a
621.369 2
100
_a
GOWAR JOHN
245
0
_a
OPTICAL COMMUNICATION SYSTEM ED2
250
_a
2
260
_b
P H I
_c
1996
_a
NEW DELHI
300
_a
696
999
_c
28338
_d
28338