@proceedings {645,
	title = {Evidences of Cycles in Tree Ring Records},
	year = {1933},
	note = {This is available as a physical and electronic copy through the Tree Ring Lab. Please contact the curator for more information. pcreasman@ltrr.arizona.edu},
	keywords = {address, cycles, Douglass, evidence, historic, proceedings of the national academy of science, record, tree ring},
	author = {Douglass, A.E.}
}
@article {675,
	title = {Phi Kappa Phi Installation Address},
	year = {1925},
	keywords = {address, Douglass, installation, journal, phi kappa phi},
	author = {Douglass, A.E.}
}
@booklet {672,
	title = {Historical Address},
	year = {1923},
	keywords = {address, Douglass, historic, steward observatory},
	author = {Douglass, A.E.}
}
@article {793,
	title = {Address at High School on Halleys Comet},
	year = {1910},
	note = {This title is available through the Tree Ring Laboratory; please contact the lab for more information. },
	address = {Tucson},
	keywords = {address, comet, Douglass, Halleys, high school, historic},
	author = {unknown}
}
@article {799,
	title = {Physical Geography},
	volume = {I},
	year = {1906},
	note = {Copies of this are available in the Tree Ring Laboratory; please contact the lab for more information. },
	keywords = {address, Douglass, Geography, historic, newspaper, school, tempe},
	author = {Douglass, A.E.}
}
