by Robert H. Ruth
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A 4-year record of Sitka spruce and west...
Forest residues in hemlock-spruce forest...
Ten-year history of an Oregon coastal pl...
Effect of shade on germination and growt...
Plantation survival and growth in two br...
Reducing wind damage in the forests of t...
The Golden Spruce
Stand-density study of spruce-hemlock st...
Cubic-foot volume tables and equations f...
Spruce reproduction dynamics on Alaska's...
Sitka spruce and Western hemlock beach l...
The density and distribution of Sitka sp...