TY - BOOK AU - Brown,Mark Herbert AU - Nygard,Iver J. TI - ... Erosion and related land use conditions in Winona county, Minnesota, T2 - U. S. Soil Conservation Service. Erosion survey AV - S623 .U44 no. 17 U1 - 631.45 PY - 1941///] CY - Washington PB - [U.S. Govt. Print. Off. KW - Soil conservation KW - Minnesota KW - Winona County N1 - Issued by U. S. Dept. of Agriculture, Soil Conservation Service ER -