APA (7th ed.) Citation

Kramer, S. N. (1956). From the Tablets of Sumer. 25 Firsts of Man’s Recorded History.

Chicago Style (17th ed.) Citation

Kramer, S. N. From the Tablets of Sumer. 25 Firsts of Man’s Recorded History. Indian Hills, Colorado, 1956.

MLA (8th ed.) Citation

Kramer, S. N. From the Tablets of Sumer. 25 Firsts of Man’s Recorded History. 1956.