000 00261nam a2200121Ia 4500
008 190719s9999 xx 000 0 und d
100 _aE T Bell
245 0 _aMen of Mathematics-V.2.
250 _a1st
260 _aLondon
_bPenguin
650 _aMath
942 _cBK
999 _c351
_d351