000 00291nam a2200121Ia 4500
008 160710s1955 xx 000 0 und d
082 _a624.151 BUT
100 _aBUTLER,M.D.
245 _aCONSERVING SOIL
260 _bD. VAN NOSTRAND COMPANY, INC.
_c1955
300 _a321
942 _2ddc
_cB
999 _c30162
_d30162