Cita APA (7a ed.)
H, X., Ringler, C., Zhu, T., & A, W. (2013). Droughts in Pakistan: A spatiotemporal variability analysis using the standardized precipitation index. Informa UK Limited.
Cita Chicago Style (17a ed.)
H, Xie, Claudia Ringler, T. Zhu, y Waqas A. Droughts in Pakistan: A Spatiotemporal Variability Analysis Using the Standardized Precipitation Index. Informa UK Limited, 2013.
Cita MLA (9a ed.)
H, Xie, et al. Droughts in Pakistan: A Spatiotemporal Variability Analysis Using the Standardized Precipitation Index. Informa UK Limited, 2013.
Precaución: Estas citas no son 100% exactas.