000			00422 a2200157 4500
041			_aEn
082			_a004.65 _bHAN
100			_aHancock , Bill
245			_aNetwork concepts and architectures
260			_c1990 _aNew Delhi _bBPB Publications _g1990
300			_c24 cm. _aix,223 p.
650			_aCOMPUTER NETWORK ARCHITECTURES
650			_aCOMPUTER COMMUNICATIONS NETWORKS
650			_aCOMPUTER SCIENCE
942			_cSR
999			_c22813 _d24360