000 00314nam a2200121Ia 4500
008 221001s1962 xx 000 0 eng d
082 _a330.07 FER
100 _aFerber, Robert
245 0 _aResearch methods in economics & business
260 _aNew York
_bMacmillan
_c1962
300 _axiv, 573p.
942 _2ddc
_cBK
999 _c8700
_d8700