Newsome, Seth D., Ralls, Katherine, Job, Christine Van Horn, Fogel, Marilyn L., and Cypher, Brian L. 2010. "
Stable isotopes evaluate exploitation of anthropogenic foods by the endangered San Joaquin kit fox (Vulpes macrotis mutica)."
Journal of Mammalogy, 91, (6) 1313–1321.
https://doi.org/10.1644/09-MAMM-A-362.1.