Dale, J. W., and J. A. Schenk. 1978. Cone production and insect-caused seed losses of ponderosa pine in Idaho and adjacent Washington and Montana. University of Idaho, Forest, Wildlife and Range Experiment Station, Bulletin 24. 15 p.
Dale & Schenk 1978
Funded by the National Science Foundation PEET program (Partnerships for Enhancing Expertise in Taxonomy)
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