APA (7th ed.) Citation

Kramer, S. N. (1946). Heroes of Sumer. A New Heroic Age in World History and Literature.

Chicago Style (17th ed.) Citation

Kramer, S. N. Heroes of Sumer. A New Heroic Age in World History and Literature. 1946.

MLA (8th ed.) Citation

Kramer, S. N. Heroes of Sumer. A New Heroic Age in World History and Literature. 1946.

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