Bachman, J. (1839)Archived 2009-01-07 at the Wayback Machine Description of several new Species of American quadrupeds. Journal of the Academy of Natural Sciences of Philadelphia, 8, 57-74.
Bachman, J. (1839)Archived 2009-01-07 at the Wayback Machine Description of several new Species of American quadrupeds. Journal of the Academy of Natural Sciences of Philadelphia, 8, 57-74.