APA (7th ed.) Citation

Oppenheim, A. L. (1964). Ancient Mesopotamia. Portrait of a Dead Civilization.

Chicago Style (17th ed.) Citation

Oppenheim, A. Leo. Ancient Mesopotamia. Portrait of a Dead Civilization. Chicago, 1964.

MLA (8th ed.) Citation

Oppenheim, A. Leo. Ancient Mesopotamia. Portrait of a Dead Civilization. 1964.

Warning: These citations may not always be 100% accurate.