000 00284nam a2200121Ia 4500
008 191031s9999 xx 000 0 und d
100 _aAllen (RGD)
245 0 _aMathematical Economics 2nd Ed
260 _b"Macmillan Co, New York"
260 _c1959
365 _b40
942 _cBK
999 _c215505
_d215505