000 00335nam a2200145Ia 4500
654 _aCOMP
100 _aHeld, Gibert
_93156
250 _a4th Ed.
080 _aHEL
942 _cBB
245 _aUnderstanding Data Communications
260 _bPearson India Education Service Pvt. Ltd.
_c1994
300 _a564p.
999 _c48779
_d48779
655 _aF-14
546 _aText in English
041 _aeng
300 _c20.5 cm.