000 00473nam a2200169Ia 4500
008 170101s1952 xx 000 0 und d
082 _a631.45 F60S
100 _aFood and agriculture organization of the united nations
245 0 _aSoil conservation : an international study
260 _c1952
300 _a189p
440 _aFAO agriculture studies no. 4
650 _aSOIL CONSERVATION
653 _aSOIL CONSERVATION
653 _aSOIL EROSION
942 _2ddc
_cB
999 _c2634
_d2634