Elytroderma disease of ponderosa pine
Childs, T.W., Shea, K.R., Stewart, J.L.
Elytroderma disease of ponderosa pine - Washington 1971 - 1-6 p. - Disease, Pine United States Department of Agriculture, Forest Service. Forest Pest Leaflet No. 42 .
Elytroderma disease of ponderosa pine - Washington 1971 - 1-6 p. - Disease, Pine United States Department of Agriculture, Forest Service. Forest Pest Leaflet No. 42 .