000 00269nam a2200109Ia 4500
008 220120s9999||||xx |||||||||||||| ||und||
020 _a014018130X
100 _aRyder, John
_911544
245 0 _aNetworks, lines and fields
260 _bLondon
_c1991
300 _a157p.
_b0
999 _c136533
_d136533