Yazar
steven l wert
3 cilt bulundu.
Cilt sonuçları
Impact of Douglas-fir tussock moth
Steven L. Wert · Pacific Southwest Forest and Range Experiment Station, Forest Service, U.S. Dept. of Agriculture
Sayfa sayısı yok · 1970
Aerial photography in forestry / Diseases and pests / Douglas fir / Douglas fir tussock moth
Recent advances and applications of forest photo-interpretation
Steven L. Wert · Yayınevi bilinmiyor
28 sayfa · 1966
Aerial photography in forestry / Technological innovations