000 00281nam a2200121Ia 4500
008 190107s9999 xx 000 0 und d
020 _a9789332515901
100 _a"Beasley, J.S."
245 0 _aNetworking essentials 3rd edition
260 _bPearson
365 _b789/-
942 _cBK
999 _c603
_d603