Library of Congress. (1927). Joseph Pennell memorial exhibition: Catalogue. [Govt. Print. Off.].
Chicago Style (17th ed.) CitationLibrary of Congress. Joseph Pennell Memorial Exhibition: Catalogue. Washington: [Govt. Print. Off.], 1927.
MLA引文Library of Congress. Joseph Pennell Memorial Exhibition: Catalogue. [Govt. Print. Off.], 1927.
警告:這些引文格式不一定是100%准確.