↑ Macdonald, D.W. & Reynolds, J.C. (2004). Vulpes vulpes. 2006 IUCN Red List of Threatened Species. IUCN 2006. Retrieved on 2006-08-09. Database entry includes justification for why this species is of least concern
↑ Wozencraft, W. Christopher (16 November 2005). "Order Carnivora (pp. 532-628)". In Wilson, Don E., and Reeder, DeeAnn M., eds. Mammal Species of the World: A Taxonomic and Geographic Reference (3rd ed.). Baltimore: Johns Hopkins University Press, 2 vols. (2142 pp.). ISBN 978-0-8018-8221-0. OCLC 62265494. http://www.bucknell.edu/msw3/browse.asp?id=14000865
↑ Katherine Berrin & Larco Museum (1997). The Spirit of Ancient Peru:Treasures from the Museo Arqueológico Rafael Larco Herrera. New York: Thames and Hudson.
