APA (7th ed.) Citation

Xu, H., Twine, T. E., & Girvetz, E. Climate Change and Maize Yield in Iowa. Public Library of Science (PLoS).

Chicago Style (17th ed.) Citation

Xu, Hong, Tracy E. Twine, and Evan Girvetz. Climate Change and Maize Yield in Iowa. Public Library of Science (PLoS).

MLA (9th ed.) Citation

Xu, Hong, et al. Climate Change and Maize Yield in Iowa. Public Library of Science (PLoS).