Duffy, M. J. (1980). Francis, brother of the universe: His complete life's story. New York.
Chicago Style (17th ed.) CitationDuffy, Mary Jo. Francis, Brother of the Universe: His Complete Life's Story. New York, 1980.
MLA (8th ed.) CitationDuffy, Mary Jo. Francis, Brother of the Universe: His Complete Life's Story. New York, 1980.
Warning: These citations may not always be 100% accurate.