APA (7th ed.) Citation

Freeman, B. G., & Pennell, M. W. (2021). The latitudinal taxonomy gradient. Trends in Ecology & Evolution, 36(9), 778. https://doi.org/10.1016/j.tree.2021.05.003

Chicago Style (17th ed.) Citation

Freeman, Benjamin G., and Matthew W. Pennell. "The Latitudinal Taxonomy Gradient." Trends in Ecology & Evolution 36, no. 9 (2021): 778. https://doi.org/10.1016/j.tree.2021.05.003.

MLA (9th ed.) Citation

Freeman, Benjamin G., and Matthew W. Pennell. "The Latitudinal Taxonomy Gradient." Trends in Ecology & Evolution, vol. 36, no. 9, 2021, p. 778, https://doi.org/10.1016/j.tree.2021.05.003.