Yazar
Paul Zehngraff
5 cilt bulundu.
Cilt sonuçları
Possibilities of managing lumber
Paul Zehngraff · U.S. Dept. of Agriculture, Forest Service, Lake States Forest Experiment Station
23 sayfa · 1947
Aspen
How many small fence posts to a cord?
Paul J. Zehngraff · Lake States Forest Experiment Station
Sayfa sayısı yok · 1947
Forests and forestry / Measurement
Mortality losses are low in managed forests
Paul J. Zehngraff · Lake States Forest Experiment Station, University Farm
Sayfa sayısı yok · 1948
Forest management / Trees / Mortality
Forest conditions in Taiwan
Paul Zehngraff · [Chinese-American Joint Commission on Rural Reconstruction
59 sayfa · 1951
Forests and forestry
Spacing of Young Red Pine; No. 8
F. H. (Francis Howlett) 1898-1 Eyre, Paul J. (Paul Johannes) 1 Zehngraff, Lake States Forest Experiment Station · Creative Media Partners, LLC
Sayfa sayısı yok · 2021
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