000 00303nam a2200109Ia 4500
008 220117s9999||||xx |||||||||||||| ||und||
040 _cIAB
082 _a001.64404 HAL
100 _aHalsall,Fred
245 0 _aIntroduction To Data Communications And Computer
260 _bAddison-Wesley Publishing Co
_c1985
999 _c29830
_d29830