APA (7th ed.) Citation

Kramer, S. N. (1971). Sumer, Sumerian.

Chicago Style (17th ed.) Citation

Kramer, Samuel Noah. Sumer, Sumerian. 1971.

MLA (8th ed.) Citation

Kramer, Samuel Noah. Sumer, Sumerian. 1971.

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