000 00315nam a2200121Ia 4500
008 190829s9999 xx 000 0 und d
020 _a0 7100 86342
082 _a516.35
_bLED/C
100 _aLEDERMANN, Walter
245 0 _aCOMPLEX NUMBERS
260 _bThe English Language Book Society
_aLondon
_c1977
942 _cBK
999 _c2312
_d2312