000 00325nam a2200109 4500
245 _aStatistical techniques in commerce and economics.
_cby K. P Roy.
100 _aRay ,K. P.
250 _a5th rev. ed.
260 _aCalcutta.
_bProgressive Publishers.
_c1974
300 _axv,377p.; 24cm.
082 _a330.0182
_bRAY
999 _c17920
_d17920