Funded by the National Science Foundation PEET program (Partnerships for Enhancing Expertise in Taxonomy)
Rose-Chaffin, W. E. 1964a. Ensayo de insecticidas en campo sobre el descortezador Dendroctonus frontalis Zimm. XIII Dia del Insecto, Escuela Nacional de Agricultura, Dept. Parasitologia, Chapingo, Mexico.
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