000 00309nam a2200121Ia 4500
008 211209s1978 xx 000 0 und d
041 _aeng
082 _a621.319 2 N78 RYD
100 _aRYDER J D
245 _aNETWORKS LINES AND FIELDS
260 _aNEW DELHI
_bPRENTICE-HALL OF INDIA
_c1978
300 _a605
999 _c107273
_d107273