Perry, E. L. (1947). Third Presbyterian Church, Dubuque, Iowa. Board of National Missions, Presbyterian Church.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रPerry, Everett L. Third Presbyterian Church, Dubuque, Iowa. New York: Board of National Missions, Presbyterian Church, 1947.
एमएलए (8वां संस्करण) प्रशस्ति पत्रPerry, Everett L. Third Presbyterian Church, Dubuque, Iowa. Board of National Missions, Presbyterian Church, 1947.
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