Funded by the National Science Foundation PEET program (Partnerships for Enhancing Expertise in Taxonomy)
Wood, D. L., R. P. Akers, D. R. Owen, and J. R. Parmeter. 1986. The behavior of bark beetles colonizing ponderosa pine. Pages 91-103 in B. E. Juniper and T R. E. Southwood, Insects and the plant surface. Edward Arnold, Limited, London.