. . "Soil science." . . "Suelos Reconocimiento." . . "Ciencia Do Solo." . . "Pedologia." . . . . . . . . . . . "The Study of the Soil in the Field"@en . . . . . . "Study of the soil" . . . "Study of the soil in the field" . . . . "[The Study of the Soil in the Field, etc.]" . "[The Study of the Soil in the Field, etc.]"@en . . . . . . "The study of the soil in the field by G.R. Clarke"@en . . . . . . "Soil site characteristics; Soil profile pit; Soil sampling; Soil survey and mapping; The use of air photographs for soil survey purposes; Main points in some systems of soil mapping and classification." . . "Soils in the field"@en . . "The Study of the Soil in The Field" . . . . . . . . . . . "The Study of the Soil in the Field, etc"@en . . . . "The study of the soil in the field"@en . "The study of the soil in the field" . . . . . . . . "The study of the soil in the field, by G.R. Clarke"@en . "The study of the soil"@en . "The study of the soil in the field 4th ed" . . . . "Soil survey of England and Wales" . "Soil in the field" . "Soil in the field"@en . . . . . . . . . . . . . . . . . . . "Soils Research." . . "Soils." . . "Investigación de suelos." . . "Soil surveys." . .