000			00378nam a2200181Ia 4500
008			140910s9999 xx 000 0 und d
082			_bDER - H
100			_aDerfler, Frank J
245			_aHow Networks Work
250			_a4th
260			_aDelhi
260			_bTechmedia Pub
260			_c1999
300			_a212p
650			_aIT & CS
942			_2DDC
942			_cBook
999			_c31819 _d31819