Perry, E. L. (1947). Third Presbyterian Church, Dubuque, Iowa. Board of National Missions, Presbyterian Church.
Chicago-referens (17:e uppl.)Perry, Everett L. Third Presbyterian Church, Dubuque, Iowa. New York: Board of National Missions, Presbyterian Church, 1947.
MLA-referens (8:e uppl.)Perry, Everett L. Third Presbyterian Church, Dubuque, Iowa. Board of National Missions, Presbyterian Church, 1947.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.