Philosophies of soil classifications : from is to does / S.W. Buol -- How good is our soil classification? / R. Dudal -- Soil classification : past and present / Robert J. Ahrens, Thomas J. Rice, Jr., ...
The USDA’s Agricultural Research Service (ARS), the University of Nebraska–Lincoln (UNL), and the ARS’s Partnership for Data Innovations (PDI) have launched a new web-based application to facilitate ...
Perspective -- Geologic time : The quaternary period ; Archeology ; Estimating geologic time ; Early estimates of geologic time -- Weathering and erosion : Structure of the rocks ; Structure in ...
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