APA (7th ed.) Citation

Helbaek, H. (1961). Studying the Diet of Ancient Man.

Chicago Style (17th ed.) Citation

Helbaek, H. Studying the Diet of Ancient Man. New York, 1961.

MLA (8th ed.) Citation

Helbaek, H. Studying the Diet of Ancient Man. 1961.

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