APA (7th ed.) Citation

Harrer, H., & Fitzgerald, E. (1965). I come from the stone age. Dutton.

Chicago Style (17th ed.) Citation

Harrer, Heinrich, and Edward Fitzgerald. I Come from the Stone Age. New York: Dutton, 1965.

MLA (9th ed.) Citation

Harrer, Heinrich, and Edward Fitzgerald. I Come from the Stone Age. Dutton, 1965.