Brenneman, Dale. 2004. ?Climate Of Rebellion: The Relationship Between Climate Variability And Indigenous Uprisings In Mid-Eighteenth-Century Sonora?. Anthropology. Anthropology. University of Arizona. http://ezproxy.library.arizona.edu/login?url=http://proquest.umi.com/pqdweb?did=795926481&sid=4&Fmt=2&clientId=43922&RQT=309&VName=PQD.

Douglass, AE. 1923. ?University Of Arizona Eclipse Expedition, Port Libertad, Sonora, Mexico?. Publications Of The Astronomical Society Of The Pacific XXXVI (No. 212). Publications Of The Astronomical Society Of The Pacific.