APA引文

Piechota, T. C., Timilsena, J., Tootle, G., & Hidalgo León, H. G. (2014). The Western U.S. Drought: How Bad Is It?

Citación estilo Chicago

Piechota, Thomas C., Janak Timilsena, Glenn Tootle, y Hugo G. Hidalgo León. The Western U.S. Drought: How Bad Is It? 2014.

MLA引文

Piechota, Thomas C., Janak Timilsena, Glenn Tootle, y Hugo G. Hidalgo León. The Western U.S. Drought: How Bad Is It? 2014.

警告：這些引文格式不一定是100％准確.