APA (7th ed.) Citation

Abeysingha, N. S., & Rajapaksha, U. R. L. N. SPI-Based Spatiotemporal Drought over Sri Lanka. Wiley.

Chicago Style (17th ed.) Citation

Abeysingha, N. S., and U. R. L. N. Rajapaksha. SPI-Based Spatiotemporal Drought over Sri Lanka. Wiley.

MLA (9th ed.) Citation

Abeysingha, N. S., and U. R. L. N. Rajapaksha. SPI-Based Spatiotemporal Drought over Sri Lanka. Wiley.

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