Perry, E. L. (1962). Church distribution study, 1960. Board of National Missions, United Presbyterian Church.
Chicago-viite (17. p.)Perry, Everett L. Church Distribution Study, 1960. New York: Board of National Missions, United Presbyterian Church, 1962.
MLA-viite (8. p.)Perry, Everett L. Church Distribution Study, 1960. Board of National Missions, United Presbyterian Church, 1962.
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