000 00315nam a2200121Ia 4500
008 150617s9999 xx 000 0 und d
082 _a4.6
_bELA
100 _aElahi Ata.
245 _aNetwork Communications Technology.
260 _aAfrica
_bDelmar
_c2002
300 _a351
500 _aData Communication & Netwo
999 _c358675
_d358675