Funded by the National Science Foundation PEET program (Partnerships for Enhancing Expertise in Taxonomy)
Rappaport, N. G., and D. L. Wood. 1988b. Pityophthorus orarius Bright (Coleoptera: Scolytidae) in a Douglas-fir seed orchard: effect of clonal source and cone crop on rate of attack . International Congress of Entomology, Proceedings 18:431.