Janssen, L. H., & Parsells, G. (1959). American Baptists in Portland: Report of a church and community strategy study of ten American Baptist churches in Portland, Oregon. American Baptist Home Mission Society.
Chicago-referens (17:e uppl.)Janssen, Lawrence H., och George Parsells. American Baptists in Portland: Report of a Church and Community Strategy Study of Ten American Baptist Churches in Portland, Oregon. New York: American Baptist Home Mission Society, 1959.
MLA-referens (8:e uppl.)Janssen, Lawrence H., och George Parsells. American Baptists in Portland: Report of a Church and Community Strategy Study of Ten American Baptist Churches in Portland, Oregon. American Baptist Home Mission Society, 1959.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.