APA (7th ed.) Citation

Heyerdahl, T. (1960). Aku-aku: The secret of Easter Island. Penguin Books.

Chicago Style (17th ed.) Citation

Heyerdahl, Thor. Aku-aku: The Secret of Easter Island. Harmondsworth, Eng.: Penguin Books, 1960.

MLA (8th ed.) Citation

Heyerdahl, Thor. Aku-aku: The Secret of Easter Island. Penguin Books, 1960.

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