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Filters: Author is Peterson, Roy M. and Keyword is tree ring  [Clear All Filters]
1944
Peterson, Roy M, and AE Douglass. 1944. “Tree Rings And Climatic Cycles, Laboratory Of Tree-Ring Research, Astronomical Studies”. Phi Kappa Phi Journal. Phi Kappa Phi Journal. Tucson: University of Arizona.
PDF icon Peterson, Roy M_Phi Kappa Phi Journal_1944.pdf (75.53 MB)