William Bentley Ball. The Catholic University of America, The American Catholic History Research Center and University Archives.
Chicago Style (17th ed.) CitationWilliam Bentley Ball. The Catholic University of America, The American Catholic History Research Center and University Archives.
MLA引文William Bentley Ball. The Catholic University of America, The American Catholic History Research Center and University Archives.
警告：這些引文格式不一定是100％准確.