Gorgen, C. P. (1963). Catholic conscientious objectors. s.n..
Chicago Style (17th ed.) CitationGorgen, Carol Perry. Catholic Conscientious Objectors. [United States: s.n., 1963.
MLA引文Gorgen, Carol Perry. Catholic Conscientious Objectors. s.n., 1963.
警告:這些引文格式不一定是100%准確.