APA (7th ed.) Citation

Gabriel, R. A., & Metz, K. S. (1991). From Sumer to Rome: The military capabilities of ancient armies Contributions in military studies.

Chicago Style (17th ed.) Citation

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

MLA (8th ed.) Citation

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