000			00306nam a2200133Ia 4500
008			160710s1977 xx 000 0 und d
082			_a624.384151 RYD
100			_aRYDER,J.D.
245			_aNETWORKS, LINES AND FIELDS
250			_a2
260			_bPRENTICE HALL _c1977
300			_a593
942			_2ddc _cB
999			_c40809 _d40809