000			00345nam a2200145Ia 4500
008			231217s9999 xx 000 0 und d
041			_aEnglish
082			_a621.3192 RYD;15
100			_aRyder, John D
245		0	_aNetworks, lines and fields
250			_a2nd ed.
260			_c1955 _bNew Delhi : PHI,
300			_axi+593
942			_cAA
999			_c164386 _d164386