@book {876,
	title = {A Directory of Tree-Ring Dated Native American Sites in the American Southwest},
	year = {1993},
	month = {09/1993},
	publisher = {Laboratory of Tree-Ring Research},
	organization = {Laboratory of Tree-Ring Research},
	address = {Tucson},
	keywords = {apache, Archaeology, dating, dendrochronology, directory, Geography, native american, navajo, Pueblo, quandrangle, site, southwest, tree ring, ute},
	author = {Robinson, William J. and Ronald H. Towner}
}
@book {882,
	title = {A Directory of Tree-Ring Dated Prehistoric Sites in the American Southwest},
	year = {1991},
	publisher = {Laboratory of Tree-Ring Research},
	organization = {Laboratory of Tree-Ring Research},
	address = {Tucson},
	keywords = {Archaeology, dendrochrononology, directory, native american, Prehistoric, quadrangle series, site, southwest, tree ring},
	author = {Robinson, William J. and Catherine M. Cameron}
}
@article {878,
	title = {Dendroclimatic Variability in the American Southwest A.D. 680 to 1970},
	year = {1977},
	month = {03/1977},
	institution = {Laboratory of Tree-Ring Research},
	address = {Tucson},
	keywords = {climate, dendrochronology, dendroclimatology, department, interior, national park service, paleoclimate, report, southwest, tree ring, variability},
	author = {Dean, Jeffrey S. and Robinson, William J.}
}
