Somers, C. M., Graham, C. F., Martino, J. A., Frasier, T. R., Lance, S. L., Gardiner, L. E., & Poulin, R. G. (2017). Conservation genetics of the eastern yellow-bellied racer (Coluber constrictor flaviventris) and bullsnake (Pituophis catenifer sayi): River valleys are critical features for snakes at northern range limits. PLoS ONE, 12(11), 1. https://doi.org/10.1371/journal.pone.0187322
Chicago Style (17th ed.) CitationSomers, Christopher M., Carly F. Graham, Jessica A. Martino, Timothy R. Frasier, Stacey L. Lance, Laura E. Gardiner, and Ray G. Poulin. "Conservation Genetics of the Eastern Yellow-bellied Racer (Coluber Constrictor Flaviventris) and Bullsnake (Pituophis Catenifer Sayi): River Valleys Are Critical Features for Snakes at Northern Range Limits." PLoS ONE 12, no. 11 (2017): 1. https://doi.org/10.1371/journal.pone.0187322.
MLA (9th ed.) CitationSomers, Christopher M., et al. "Conservation Genetics of the Eastern Yellow-bellied Racer (Coluber Constrictor Flaviventris) and Bullsnake (Pituophis Catenifer Sayi): River Valleys Are Critical Features for Snakes at Northern Range Limits." PLoS ONE, vol. 12, no. 11, 2017, p. 1, https://doi.org/10.1371/journal.pone.0187322.