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Author Title Type [ Year] Filters: Author is Harrill, Bruce G. and Keyword is dates [Clear All Filters]
Tree-Ring Dates From Arizona H-I Flagstaff Area. Tucson: University of Arizona.
. 1975. Robinson, William, Harrill, Bruce, Warren, Richard_Tree-Ring Dates from Arizona H-I Flagstaff Area_1975.pdf (83.21 MB)