000 00328 a2200133 4500
020 _a0273026968
041 _aEn
100 _aThirkettle G. L.
245 _aWheldon's business statistics and statistical method
250 _a9th ed.
260 _c1981
_aLondon
_bPitman
_g1981
300 _c22cm.
_aviii , 278 p.
942 _cLN
999 _c26316
_d27863