Yazar
Robert J Hrubes
4 cilt bulundu.
Cilt sonuçları
Roadless area-intensive management tradeoffs on the Sierra National Forest, California
Robert J Hrubes · U.S. Dept. of Agriculture, Forest Service, Pacific Southwest Forest and Range Experiment Station
11 sayfa · 1979
Forest management / Forests and forestry / Multiple use
Economic efficiency in Forest Service program development
Robert J Hrubes · U.S. Dept. of Agriculture, Forest Service, Pacific Southwest Forest and Range Experiment Station
Sayfa sayısı yok · 1984
Forest management / United States / United States. Forest Service
Application of linear programing to downward sloping demand problems in timber production
Robert J. Hrubes · Dept. of Agriculture, Forest Service, Pacific Southwest Forest and Range Experiment Station
Sayfa sayısı yok · 1976
Linear programming / Timber
National forest system working circles
Robert J. Hrubes · Dept. of Agriculture, Forest Service, Pacific Southwest Forest and Range Experiment Station
Sayfa sayısı yok · 1976
Forest reserves / Timber