APA (7th ed.) Citation

Seviour, W., Mitchell, D., & Gray, L. (2013). A practical method to identify displaced and split stratospheric polar vortex events.

Chicago Style (17th ed.) Citation

Seviour, W., D. Mitchell, and L. Gray. A Practical Method to Identify Displaced and Split Stratospheric Polar Vortex Events. 2013.

MLA (9th ed.) Citation

Seviour, W., et al. A Practical Method to Identify Displaced and Split Stratospheric Polar Vortex Events. 2013.