Yazar
paul e packer
2 cilt bulundu.
Cilt sonuçları
Rehabilitation potentials and limitations of surface-mined land in the northern Great Plains
Paul E. Packer · Intermountain Forest and Range Experiment Station, Forest Service, U.S. Dept. of Agriculture
44 sayfa · 1974
Strip mining / Reclamation of land
Watershed management problems in the northern Rocky Mountain region
Paul E. Packer · Intermountain Forest and Range Experiment Station
28 sayfa · 1959
Watershed management