Westermann, W. L. (1955). The Slave systems of Greek and Roman antiquity Memoirs of the American Philosophical Society.
Chicago Style (17th ed.) CitationWestermann, William Linn. "The Slave Systems of Greek and Roman Antiquity." Memoirs of the American Philosophical Society 1955.
MLA (8th ed.) CitationWestermann, William Linn. "The Slave Systems of Greek and Roman Antiquity." Memoirs of the American Philosophical Society, 1955.
Warning: These citations may not always be 100% accurate.