Twenty-year Natural Regeneration Following Five Silvi- cultural Prescriptions in Spruce-ir Foresrs of the Intermountain West. Research Paper INT -439
Maccaughey Ward W.
Fieldler Carl E.
Schmidt Wyman C.
Ogden : United States Department of Agriculture, Forest Service, Intermountain Research Station , 1991. - 12 s.: 6 obr., 5 tab.
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