Livestock grazing effects on phosphorus cycling in watershedsShewmaker, Glenn E. (1999) Livestock grazing effects on phosphorus cycling in watersheds. pp. 53-60. In: Tanaka, John A. (ed.) Proc. Riparian and Watershed Management in the Interior Northwest: An Interdisplinary Perspective Symp. USA-OR-La Grande, 1998/09/10-12.
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