Perry, E. L. (1961). Planning for United Presbyterian U.S.A. sites in Tucson, Arizona vicinity 1961. Board of National Missions, United Presbyterian Church USA.
Lua i Stíl Chicago (17ú heag.)Perry, Everett L. Planning for United Presbyterian U.S.A. Sites in Tucson, Arizona Vicinity 1961. New York: Board of National Missions, United Presbyterian Church USA, 1961.
Lua MLA (8ú heag.)Perry, Everett L. Planning for United Presbyterian U.S.A. Sites in Tucson, Arizona Vicinity 1961. Board of National Missions, United Presbyterian Church USA, 1961.
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