Callaham, R. Z. 1952a. Host selection and host susceptibility in western pine beetle-ponderosa pine complex. United States Department of Agriculture, Rureau of Entomology and Plant Quarantine, Forest Insect Laboratory, Rerkeley, California, Report. 8 p.
Callaham 1952
Funded by the National Science Foundation PEET program (Partnerships for Enhancing Expertise in Taxonomy)
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