APA (7th ed.) Citation

Koch, M., Karl, R., & Kiefer, C. (2010). Colonizing the American continent: Systematics of the genus arabis in North America (Brassicaceae). American journal of botany, 97(6), . https://doi.org/10.3732/ajb.0900366

Chicago Style (17th ed.) Citation

Koch, Marcus, Robert Karl, and Christiane Kiefer. "Colonizing the American Continent: Systematics of the Genus Arabis in North America (Brassicaceae)." American Journal of Botany 97, no. 6 (2010). https://doi.org/10.3732/ajb.0900366.

MLA (9th ed.) Citation

Koch, Marcus, et al. "Colonizing the American Continent: Systematics of the Genus Arabis in North America (Brassicaceae)." American Journal of Botany, vol. 97, no. 6, 2010, https://doi.org/10.3732/ajb.0900366.