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.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रPerry, 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.
एमएलए (8वां संस्करण) प्रशस्ति पत्रPerry, 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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