TY - RPRT T1 - Dendroclimatic Variability in the American Southwest A.D. 680 to 1970 Y1 - 1977 A1 - Dean, Jeffrey S. A1 - Robinson, William J. KW - climate KW - dendrochronology KW - dendroclimatology KW - department KW - interior KW - national park service KW - paleoclimate KW - report KW - southwest KW - tree ring KW - variability PB - Laboratory of Tree-Ring Research CY - Tucson ER -