000 00311nam a2200121Ia 4500
008 191031s9999 xx 000 0 und d
100 _aUnited states dept. of agriculture
245 2 _aA manual on conservation of soil and water
260 _bOxford & IBH
260 _c1969
365 _b3.00
942 _cBK
999 _c197660
_d197660