000 00277nam a2200109Ia 4500
008 220204s9999 xx 000 0 und d
082 _a631.4:502.65
_bGUS
100 _aGustafson, A F
245 0 _aConservation of the soil
260 _aNew York
_bMcGraw Hill
_c1937
942 _cBK
999 _c21860
_d21860