Borobia, M.; S. Siciliano; L. Lodi & W. Hoek (1991). "Distribution of the South American dolphin Sotalia fluviatilis". Canadian Journal of Zoology. 69 (4): 1024–1039. doi:10.1139/z91-148.
Cunha, H. A.; V. M. F. da Silva; J. Lailson-Brito Jr.; M. C. O. Santos; P. A. C. Flores; A. R. Martin; A. F. Azevedo; A. B. L. Fragoso; R. C. Zanelatto & A. M. Solé-Cava (2005). "Riverine and marine ecotypes of Sotalia dolphins are different species". Marine Biology. 148 (2): 449–457. Bibcode:2005MarBi.148..449C. doi:10.1007/s00227-005-0078-2. S2CID49359327.
Cunha, H. A.; V. M. F. da Silva; J. Lailson-Brito Jr.; M. C. O. Santos; P. A. C. Flores; A. R. Martin; A. F. Azevedo; A. B. L. Fragoso; R. C. Zanelatto & A. M. Solé-Cava (2005). "Riverine and marine ecotypes of Sotalia dolphins are different species". Marine Biology. 148 (2): 449–457. Bibcode:2005MarBi.148..449C. doi:10.1007/s00227-005-0078-2. S2CID49359327.
Cunha, H. A.; V. M. F. da Silva; J. Lailson-Brito Jr.; M. C. O. Santos; P. A. C. Flores; A. R. Martin; A. F. Azevedo; A. B. L. Fragoso; R. C. Zanelatto & A. M. Solé-Cava (2005). "Riverine and marine ecotypes of Sotalia dolphins are different species". Marine Biology. 148 (2): 449–457. Bibcode:2005MarBi.148..449C. doi:10.1007/s00227-005-0078-2. S2CID49359327.
Jefferson, Thomas A. (1993). Marine mammals of the world. Stephen Leatherwood, Marc A. Webber, United Nations Environment Programme, Food and Agriculture Organization of the United Nations. Rome: United Nations Environment Programme. ISBN92-5-103292-0. OCLC30643250.