APA (7th ed.) Citation

ER, S., EL, S., & Y, A. (2003). Fossil evidence for an ancient divergence of lorises and galagos. Nature, 422(6930), 421. https://doi.org/10.1038/nature01489

Chicago Style (17th ed.) Citation

ER, Seiffert, Simons EL, and Attia Y. "Fossil Evidence for an Ancient Divergence of Lorises and Galagos." Nature 422, no. 6930 (2003): 421. https://doi.org/10.1038/nature01489.

MLA (9th ed.) Citation

ER, Seiffert, et al. "Fossil Evidence for an Ancient Divergence of Lorises and Galagos." Nature, vol. 422, no. 6930, 2003, p. 421, https://doi.org/10.1038/nature01489.