APA (7th ed.) Citation

Kramer, S. N. (1969). Gradle of civilization. Time-Life International.

Chicago Style (17th ed.) Citation

Kramer, Samuel Noah. Gradle of Civilization. Amsterdam: Time-Life International, 1969.

MLA (8th ed.) Citation

Kramer, Samuel Noah. Gradle of Civilization. Time-Life International, 1969.

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