Biblio

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1910
unknown,. 1910. “Address At High School On Halleys Comet”. Tucson Citizen. Tucson Citizen.
Douglass, AE. 1910. “Drawings Of A Comet”. Popular Astronomy. Popular Astronomy.
PDF icon Douglass, AE_Drawings of a Comet_1910.pdf (1.86 MB)
Douglass, AE. 1910. “El Cometa De Halley”. Tucson Citizen. Tucson Citizen.
Douglass, AE. 1910. “Halleys Comet”. Tucson Citizen. Tucson Citizen.