A reliable, non-invasive method for sex determination in the endangered San Joaquin kit fox (Vulpes macrotis mutica) and other canidsv. 5No. 5715–718
Ortega, J., Franco, M. R., Adams, B. A., Ralls, Katherine, and Maldonado, Jesús E. 2004. "A reliable, non-invasive method for sex determination in the endangered San Joaquin kit fox (Vulpes macrotis mutica) and other canids." Conservation Genetics, 5, (5) 715–718.