Izor, R. J.; L. de la Torre (1978). "A New Species of Weasel (Mustela) from the Highlands of Colombia, with Comments on the Evolution and Distribution of South American Weasels". Journal of Mammalogy. 59 (1): 92–102. doi.:10.2307/1379878, JSTOR:1379878.
Izor, R. J.; L. de la Torre (1978). "A New Species of Weasel (Mustela) from the Highlands of Colombia, with Comments on the Evolution and Distribution of South American Weasels". Journal of Mammalogy. 59 (1): 92–102. doi.:10.2307/1379878, JSTOR:1379878.