000 00272nam a22001097a 4500
082 _a510
_bWAL
100 _aWalker, Helen M
245 _aMathematics Essential For Elementary Statistics /
_cHelen M Walker
250 _a2nd ed
260 _bHenry Holt
_c1951
942 _cBK
999 _c502370
_d502370