00656nam a2200181Ia 45000010003000000050017000030080041000200200015000610820014000761000027000902450053001172500013001702600060001833000046002436500084002899990011003739520090003849520261006003422.0120911s9999    xx            000 0 und d  a0805377204  a004.6 STA  aStamper, David A.9187  aBusiness data communications / David A. Stamper.  a3rd. ed.  aRedwood City, Calif. : Benjamin/Cummings Pub.Co., c1991  axxxix, 620 p. : ill. (some col.) ; 25 cm.  aData transmission systems.   2. Business enterprises -- Computer networks.9188  c95d95  00104070aNUbNUd2012-09-11l0o004.6 STAp50r2012-09-11 00:00:00w2012-09-11yOS