APA (7th ed.) Citation

Guidon, N., & Delibrias, G. (1986). Carbon-14 dates point to man in the Americas 32,000 years ago. Nature Publishing Group.

Chicago Style (17th ed.) Citation

Guidon, N., and G. Delibrias. Carbon-14 Dates Point to Man in the Americas 32,000 Years Ago. [s.l.]: Nature Publishing Group, 1986.

MLA (9th ed.) Citation

Guidon, N., and G. Delibrias. Carbon-14 Dates Point to Man in the Americas 32,000 Years Ago. Nature Publishing Group, 1986.