Otter-trawl Fishery, Volumes 816-817: Alexander, Alvin Burton, Henry Frank Moore, William Converse Kendall: 9781286485149: Amazon.com: Books
Converse, R.L., Baron-Deutsch, M., Gjuillin, A. and Rowe, A.J. (2014). Reproduction of Reintroduced North American River Otter (Lontra canadensis) confirmed in New Mexico. IUCN Otter Spec. Group Bull. 31 (1): 35 - 39