000 00271nam a2200121Ia 4500
008 191031s9999 xx 000 0 und d
100 _aAyres (Frank)
245 0 _aTheory and problems of calculus
260 _bTMH
260 _c1981
365 _b
_3.95
942 _cBK
999 _c207717
_d207717