Peterson, Richard S.; Hubbs, Carl L.; Gentry, Roger L.; DeLong, Robert L. (1968). "The Guadalupe Fur Seal: Habitat, Behavior, Population Size, and Field Identification". Journal of Mammalogy. 49 (4): 665–675. doi:10.2307/1378727. ISSN0022-2372. JSTOR1378727.
García-Aguilar, María C.; Elorriaga-Verplancken, Fernando R.; Rosales-Nanduca, Hiram; Schramm, Yolanda (2018). "Population status of the Guadalupe fur seal (Arctocephalus townsendi)". Journal of Mammalogy. 99 (6): 1522–1528. ISSN0022-2372. JSTOR27007996.
Peterson, Richard S.; Hubbs, Carl L.; Gentry, Roger L.; DeLong, Robert L. (1968). "The Guadalupe Fur Seal: Habitat, Behavior, Population Size, and Field Identification". Journal of Mammalogy. 49 (4): 665–675. doi:10.2307/1378727. ISSN0022-2372. JSTOR1378727.
García-Aguilar, María C.; Elorriaga-Verplancken, Fernando R.; Rosales-Nanduca, Hiram; Schramm, Yolanda (2018). "Population status of the Guadalupe fur seal (Arctocephalus townsendi)". Journal of Mammalogy. 99 (6): 1522–1528. ISSN0022-2372. JSTOR27007996.
Peterson, Richard S.; Hubbs, Carl L.; Gentry, Roger L.; DeLong, Robert L. (1968). "The Guadalupe Fur Seal: Habitat, Behavior, Population Size, and Field Identification". Journal of Mammalogy. 49 (4): 665–675. doi:10.2307/1378727. ISSN0022-2372. JSTOR1378727.