APA (7th ed.) Citation

Gabriel, R., & Metz, K. S. (1991). A.From Sumer to Rome. The Military Capabilities of Ancient Armies.

Chicago Style (17th ed.) Citation

Gabriel, Richard, and Karen S. Metz. A.From Sumer to Rome. The Military Capabilities of Ancient Armies. New York, 1991.

MLA (8th ed.) Citation

Gabriel, Richard, and Karen S. Metz. A.From Sumer to Rome. The Military Capabilities of Ancient Armies. 1991.