APA (7th ed.) Citation

Royer, A. C., Figueiredo, T. d., Fonseca, F., Schutz, F. C. d. A., & Hernández, Z. (2021). Trends of change in precipitation and in drought susceptibility as assessed by thestandardized precipitation index (spi) in Northeast Portugal.

Chicago Style (17th ed.) Citation

Royer, Ana Caroline, Tomás de Figueiredo, Felícia Fonseca, Fabiana Costa de Araújo Schutz, and Zulimar Hernández. Trends of Change in Precipitation and in Drought Susceptibility as Assessed by Thestandardized Precipitation Index (spi) in Northeast Portugal. 2021.

MLA (8th ed.) Citation

Royer, Ana Caroline, et al. Trends of Change in Precipitation and in Drought Susceptibility as Assessed by Thestandardized Precipitation Index (spi) in Northeast Portugal. 2021.

Warning: These citations may not always be 100% accurate.