APA (7th ed.) Citation

Westermann, W. L. (1955). The slave systems of Greek and Roman antiquity. The American Philosophical Soc.

Chicago Style (17th ed.) Citation

Westermann, William Linn. The Slave Systems of Greek and Roman Antiquity. Philadelphia: The American Philosophical Soc, 1955.

MLA (9th ed.) Citation

Westermann, William Linn. The Slave Systems of Greek and Roman Antiquity. The American Philosophical Soc, 1955.