000 00387nam a2200169Ia 4500
008 180424s9999 xx 000 0 und d
084 _a519.9 S6
100 _a"Steffensen, J F"
245 0 _aInterpolation
250 _a\\192700ENGGPCX
260 _aChelsea
260 _b1927
260 _cNew York
300 _aix+248p
500 _aincludes index and biblioraphy
942 _cBK
999 _c6423
_d6423