000
00258nam a2200109Ia 4500
008
220201s1998 xx 000 0 eng d
100
_a
COUCHI, LEON W.
245
0
_a
MODERN COMMUNICATION SYSTEMS
260
_a
DELHI
_b
PHI
_c
1998
300
_a
598
942
_2
ddc
999
_c
67696
_d
67696