Funded by the National Science Foundation PEET program (Partnerships for Enhancing Expertise in Taxonomy)
Struble, G. R. 1957. The fir engraver, a serious enemy of western true firs. United States Department of Agriculture, Forest Service, California Forest and Range Experiment Station, Production Research Report 11. 18 p.
This page uses cascading style sheets (CSS). It should display correctly using current versions of all major browsers.