Laminated root rot of douglas- fir
Childs, T.W., Nelson, E.E.
Laminated root rot of douglas- fir - Washington 1971 - 1-7 p. - United States Department of Agriculture, Forest Service. Forest Pest Leaflet No. 48 .
Laminated root rot of douglas- fir - Washington 1971 - 1-7 p. - United States Department of Agriculture, Forest Service. Forest Pest Leaflet No. 48 .