Funded by the National Science Foundation PEET program (Partnerships for Enhancing Expertise in Taxonomy)
Bedard, W. D. 1964b. Variation in capacity of Ips confusus to reach attractive hosts. Pages 137-142 in H. D. Gerhold, E. J. Schreiner, R. E. McDermot, and J. A. Winieski, Breeding pest-resistant trees. Pergammon Press, Oxford. 203 p.