000 00323cam a22001211 4500
082 _a519.5
_bHAR
_cL-4,P-.2
100 1 _aHarper, Floyd Henry,
245 0 0 _aElements of practical statistics,
_cby F.H. Harper.
260 _aNew York,
_bMacmillan,
_c1930.
300 _axix, 324 p.
_bdiagrs.
_c21 cm.
650 0 _aMCE
942 _cBK
999 _c4098
_d4098