Home›Books›Memorandum to E.C.W. technicians on the design and control of broad, shallow terrace outlet ditches, Emergency conservation erosion campsMemorandum to E.C.W. technicians on the design and control of broad, shallow terrace outlet ditches, Emergency conservation erosion campsby United States. Bureau of Agricultural EngineeringNo description available.Soil scienceSoil resource managementSoil conservation