000
00306nam a2200121Ia 4500
008
190711s9999 xx 000 0 und d
082
_a
621.38195 A1614
100
_a
ABRMSON.N
245
0
_a
COMPUTER COMMUNICATION NETWORKS
260
_a
NEW YORK
_b
Prentice Hall
_c
1973
300
_a
23X16
942
_c
BK
_2
DDC
999
_c
16493
_d
16493