000 00249nam a2200109Ia 4500
008 181012s9999 xx 000 0 und d
100 _a"RYDER, JOHN D"
245 0 _aNETWORKS LINES AND FIELDS
365 _b225
650 _aELECTRONICS
942 _cBK
999 _c15719
_d15719