Piechota, T. C., Timilsena, J., Tootle, G., & Hidalgo León, H. G. (2014). The Western U.S. Drought: How Bad Is It?
استشهاد بنمط شيكاغوPiechota, Thomas C., Janak Timilsena, Glenn Tootle, و Hugo G. Hidalgo León. The Western U.S. Drought: How Bad Is It? 2014.
MLA استشهادPiechota, Thomas C., Janak Timilsena, Glenn Tootle, و Hugo G. Hidalgo León. The Western U.S. Drought: How Bad Is It? 2014.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.