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Genetic Variation and Seed Transfer Guidelines for Ponderosa Pine in Central Oregon. Research Paper PNW-RP-472, July 1994
- Sorensen, Frank C. Genetic Variation and Seed Transfer Guidelines for Ponderosa Pine in Central Oregon. Research Paper PNW-RP-472, July 1994 / Frank C. Sorensen. -- 1.vyd. -- Portland : U.S. Department of Agriculture, Forest Service, Pacific Northwest Research Station, 1994. -- 24 s.:6 obr., 8 tab.
ZV001
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