.245
a	Business data communications.
h	Book
.100
a	Stamper David A.
.005
a	00000000000000
.260
a	Menlo Park, Ca.: Benjamin/Cummings Publ., 1986.
b
c	2000
.084
a	621.381 Zba
.300
a	xx, 456 hlm.
b	gamb., 24 cm.
c	xx, 456 hlm.; gamb., 24 cm.
.336
a	Book