000 00437nam a2200217Ia 4500
008 181031s9999 xx 000 0 und d
082 _a330
082 _bGUS
100 _aGustafson A.F.
245 _aConservation of the Soil.
250 _a3rd rev.
260 _bMcGraw-Hill
260 _c1937
300 _axvii,312p.
365 _b0
365 _cRupees
365 _d0
365 _e0
650 _aEconomics
942 _cBK
999 _c2504
_d2504