White, T., Asfaw, B., Beyene, Y., Haile-Selassie, Y., Lovejoy, C., Suwa, G., & WoldeGabriel, G. (2009). Ardipithecus Ramidus and the Paleobiology of Early Hominids. Science. https://doi.org/10.1126/science.1175802
White, Tim, Berhane Asfaw, Yonas Beyene, Yohannes Haile-Selassie, C. Lovejoy, Gen Suwa, and Giday WoldeGabriel. 2009. “Ardipithecus Ramidus and the Paleobiology of Early Hominids”. Science. https://doi.org/10.1126/science.1175802.
White, T., B. Asfaw, Y. Beyene, Y. Haile-Selassie, C. Lovejoy, G. Suwa, and G. WoldeGabriel. Ardipithecus Ramidus and the Paleobiology of Early Hominids. Science, 2 Oct. 2009, doi:10.1126/science.1175802.