000 00286nam a2200133Ia 4500
008 190201s9999 xx 000 0 und d
082 _a512
082 _b5 L663
245 0 _aTheory and Problems Line
260 _aNew York
260 _bMcGraw Hill
260 _c1981
300 _a334
999 _c23023
_d23023