title: Improved soil percolation test for determining the capacity of soils for leaching sewage effluents.
authors.forename: H F
authors.initials: HF
authors.lastname: LUDWIG
authors.forename: G W
authors.initials: GW
authors.lastname: LUDWIG
mesh_terms: D012722:Sewage; D012987:Soil
chemical_list: D012722:Sewage; D012987:Soil
keywords: SEWAGE/disposal and purification