Biblio
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Filters: Author is Robinson, William J. and Keyword is tree ring dates [Clear All Filters]
Tree-Ring Dates From Arizona C-D Eastern Grand Canyon-Tsegi Canyon-Kayenta Area. Tree-Ring Dates. Tree-Ring Dates. Tucson: University of Arizona.
. 1968. ![application/pdf PDF icon](/modules/file/icons/application-pdf.png)
Tree-Ring Dates From Utah S-W Southern Utah Area. Tucson: University of Arizona.
. 1969. ![application/pdf PDF icon](/modules/file/icons/application-pdf.png)