Yazar
george r struble
8 cilt bulundu.
George R. Struble · U.S. Dept. of Agriculture, Forest Service
Sayfa sayısı yok · 1955
California five-spined ips / Pine / Diseases and pests
George R. Struble · U.S. Dept. of Agriculture
16 sayfa · 1937
Diseases and pests / Fir / Abies magnifica / Abies concolor
George R. Struble · U.S. Dept. of Agriculture
38 sayfa · 1973
Lodgepole pine / Lodgepole needle miner / Diseases and pests
George R. Struble · U.S. Dept. of Agriculture, Forest Service
18 sayfa · 1957
Fir / Scolytus / Diseases and pests
George R. Struble · U.S. Dept. of Agriculture, Forest Service
Sayfa sayısı yok · 1970
Ips / Pinus radiata / Diseases and pests
George R. Struble · University of California press
134 sayfa · 1930
Beetles / Bark beetles / Western yellow pine / Pine / Diseases and pests
George R. Struble · U.S. Govt. Print. Off.]
Sayfa sayısı yok · 1967
Dendroctonus ponderosae / Mountain pine beetle