by Douglas Harned
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Water-quality trends and basin activitie...
Effects of highway runoff on streamflow ...
Effects of agricultural land-management ...
Assessment of hydrologic and hydrogeolog...
Water quality of North Carolina streams
Water-quality assessment of the Albemarl...
Evaluation of selective erosion control ...
Les régions de piémont au Maghreb
Montagnes et piémonts
Piedmont plains and sand-formations in a...
El piedemonte ibérico bajoaragonés
Tectonics of the Virginia Blue Ridge and...