O'Toole, G. B. (1937). Christian Wheat and Marxian Cockle. Pittsburgh, Pa..
Chicago Style (17th ed.) CitationO'Toole, George Barry. Christian Wheat and Marxian Cockle. Pittsburgh, Pa., 1937.
MLA引文O'Toole, George Barry. Christian Wheat and Marxian Cockle. Pittsburgh, Pa., 1937.
警告：这些引文格式不一定是100％准确.