000
00264nam a2200109Ia 4500
020
_a
9971512920
082
_a
004.6
100
_a
FITZEROLD AND, DENNIS
245
_a
BUSINESS DATA COMMUNICATIONS AND NETWORKING
260
_a
NEW DELHI
_b
JOHNE WELLY
_c
1998
942
_c
BK
999
_c
334
_d
334