Style de citation APA (7e éd.)

WESTERMANN, W. L. (1955). The Slave systems of Greek and Roman antiquity. The American philosophical society.

Style de citation Chicago (17e éd.)

WESTERMANN, William L. The Slave Systems of Greek and Roman Antiquity. Philadelphia: The American philosophical society, 1955.

Style de citation MLA (9e éd.)

WESTERMANN, William L. The Slave Systems of Greek and Roman Antiquity. The American philosophical society, 1955.