RepFocus
www.repfocus.dk
Jones, C.
2004
Sand boas.
Reptilia (GB) 34: 12-23.
ID16071556.html
RepFocus: references
RepFocus
www.repfocus.dk
Jones, L.L.C.; Lovich, R.E. (eds.).
2009
Lizards of the American southwest. A photographic field guide.
Rio Nuevo Publishers, Tucson, Arizona. 568 pp.