000			00325nam a2200133Ia 4500
008			160122s9999 xx 000 0 und d
041			_aEnglish
100			_aDonald P Leach
245			_aDigital: Principles and Applications
250			_a5th
260			_bDelhi:Tata Mcgraw hill _c1994
300			_a638p.
650			_aMangement
999			_c889 _d889