000 00460 a2200193 4500
245 1 _aOn estimation of price spread.
300 _a53p.
650 _aPrices
650 _aMarketing
650 _aSampling
650 _aVegetables
650 _aData collection
650 _aSurveys
502 _cIARI, Division of Agricultural statistics, New Delhi
_bM.Sc.
_d1979
502 _gSingh, P.
100 1 _aKaur, S.
942 _2udc
_cT
901 _aT3205
999 _c137759
_d137759