Yazar
h r josephson
3 cilt bulundu.
Cilt sonuçları
A history of forestry research in the Southern United States
H. R. Josephson · U.S. Dept. of Agriculture, Forest Service
78 sayfa · 1989
Forests and forestry / Forest management / Timber / Forest reserves
Land utilization statistics for the northern Sierra Nevada
David Weeks, Albert Everett Wieslander, H. R. Josephson, Cary Le Roy Hill · Forest service, Department of Agriculture, California Forest and Range Experiment Station
66 sayfa · 1942
Land use / Agriculture / Economic aspects