Sue, E., & De Leon, D. (1908). The Carlovingian coins: Or, The daughters of Charlemagne; a tale of the ninth century. New York labor news company.
Chicago Style (17th ed.) CitationSue, Eugène, and Daniel De Leon. The Carlovingian Coins: Or, The Daughters of Charlemagne; a Tale of the Ninth Century. [New York]: New York labor news company, 1908.
MLA (8th ed.) CitationSue, Eugène, and Daniel De Leon. The Carlovingian Coins: Or, The Daughters of Charlemagne; a Tale of the Ninth Century. New York labor news company, 1908.
Warning: These citations may not always be 100% accurate.