APA (7th ed.) Citation

Ferris, C., Davy, A., Oliver, R., & Hewitt, G. (1993). Native oak chloroplasts reveal an ancient divide across Europe.

Chicago Style (17th ed.) Citation

Ferris, C., A. Davy, Richard Oliver, and G. Hewitt. Native Oak Chloroplasts Reveal an Ancient Divide Across Europe. 1993.

MLA (9th ed.) Citation

Ferris, C., et al. Native Oak Chloroplasts Reveal an Ancient Divide Across Europe. 1993.