APA (7th ed.) Citation

Heyerdahl, T. (1981). The Tigris expedition: In search of our beginnings. Doubleday.

Chicago Style (17th ed.) Citation

Heyerdahl, Thor. The Tigris Expedition: In Search of Our Beginnings. Garden City, N.Y: Doubleday, 1981.

MLA (9th ed.) Citation

Heyerdahl, Thor. The Tigris Expedition: In Search of Our Beginnings. Doubleday, 1981.

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