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otis l copeland
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Preliminary soil-site studies in the western white pine type
Otis L. Copeland · Intermountain Forest and Range Experiment Station
Sayfa sayısı yok · 1956
Forest site quality / Western white pine / Soil restoration
Preliminary report on soil-rootlet relationships to pole blight of Western white pine
Otis L. Copeland · Intermountain Forest and Range Experiment Station
Sayfa sayısı yok · 1955
Western white pine / Roots / Diseases and pests