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Estimating soil seed bank characteristics in ponderosa pine forests using vegetation and forest-floor data / Scott R. Abella, Judith D. Springer.

Scott R Abella Judith D Springer

Fort Collins, CO : U.S. Dept. of Agriculture, Forest Service, Rocky Mountain Research Station 2008

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Treaty on Plant Genetic Resources for Food and Agriculture message from the President of the United States transmitting the International Treaty on Plant Genetic Resources for Food and Agriculture, adopted by the Food and Agriculture Organization of the United Nations on November 3, 2001, and signed by the United States on November 1, 2002 (the "Treaty").

United States. President (2001-2009 : Bush); United States. Congress. Senate. Committee on Foreign Relations.

Washington, D.C. : U.S. G.P.O. 2008

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Changes in abundance of vascular plants under varying silvicultural systems at the Forest Ecosystem Research and Demonstration Area, Paul Smiths, New York / Mark J. Twery [and three others].

Mark J. Twery [author] United States. Forest Service. Northern Research Station, issuing body.

Newtown Square, Pennsylvania : United States Department of Agriculture, Forest Service, Northern Research Station 2013

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