Bonacic, Cristian; Gimpel, Jessica (2003-01-01). Lemons, John; Victor, Reginald; Schaffer, Daniel, ур. Sustainable Use of the Vicuña: A Critical Analysis and the MACS Project (на језику: енглески). Springer US. стр. 348. ISBN978-1-4613-5045-3. doi:10.1007/978-1-4615-0375-0_24.
The spelling vicugna is so rare in English that it is not even mentioned in the Columbia Electronic Encyclopedia or any major dictionary, including the American Heritage Dictionary, Merriam-Webster Online Dictionary, Oxford Living Dictionaries, Random House Dictionary, Collins English Dictionary, and Longman Dictionary of Contemporary English
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Hogan, C. Michael (7. 12. 2008). Strömberg, N., ур. „Guanaco: Lama guanicoe”. GlobalTwitcher.com. GlobalTwitcher. Архивирано из оригинала 4. 3. 2011. г.CS1 одржавање: Формат датума (веза)