APA (7th ed.) Citation

Looy, C. V., Stevenson, R. A., Hoof, T. B. V., & Mander, L. (2014, November). Evidence for coal forest refugia in the seasonally dry Pennsylvanian tropical lowlands of the Illinois Basin, USA. PeerJ.

Chicago Style (17th ed.) Citation

Looy, Cindy V., Robert A. Stevenson, Thomas B. Van Hoof, and Luke Mander. "Evidence for Coal Forest Refugia in the Seasonally Dry Pennsylvanian Tropical Lowlands of the Illinois Basin, USA." PeerJ Nov. 2014.

MLA (9th ed.) Citation

Looy, Cindy V., et al. "Evidence for Coal Forest Refugia in the Seasonally Dry Pennsylvanian Tropical Lowlands of the Illinois Basin, USA." PeerJ, Nov. 2014.