Helgen, Kristofer M.; Wilson, Don E. (2005). "A Systematic and Zoogeographic Overview of the Raccoons of Mexico and Central America". In Sánchez-Cordero, Víctor; Medellín, Rodrigo A. (eds.). Contribuciones mastozoológicas en homenaje a Bernardo Villa. Mexico City: Instituto de Ecología of the Universidad Nacional Autónoma de México. p. 230. ISBN978-970-32-2603-0. Retrieved 2008-08-09.
Helgen, Kristofer M.; Wilson, Don E. (January 2003). "Taxonomic status and conservation relevance of the raccoons (Procyon spp.) of the West Indies". Journal of Zoology. 259 (1): 69–76. doi:10.1017/S0952836902002972. ISSN0952-8369.
Helgen, Kristofer M.; Wilson, Don E. (January 2003). "Taxonomic status and conservation relevance of the raccoons (Procyon spp.) of the West Indies". Journal of Zoology. 259 (1): 69–76. doi:10.1017/S0952836902002972. ISSN0952-8369.