Willging, E. P. (1937). The Index to American Catholic pamphlets. Catholic Library Service.
Chicago Style (17th ed.) CitationWillging, Eugene P. The Index to American Catholic Pamphlets. [Saint Paul, Minn.: Catholic Library Service, 1937.
MLA引文Willging, Eugene P. The Index to American Catholic Pamphlets. Catholic Library Service, 1937.
警告:这些引文格式不一定是100%准确.