Callaham, R. Z. 1953c. Studies of the resistance of pines to bark beetle attacks, season of 1952. United States Department of Agriculture, Rureau of Entomology and Plant Quarantine, Forest Insect Laboratory, Rerkeley, California, Special Report RX-19. 27 p. (processed).
Callaham 1953
Funded by the National Science Foundation PEET program (Partnerships for Enhancing Expertise in Taxonomy)
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