- di Natale 1987
- Mammiferes. Baleines, dauphins, marsouins et phoques, pp. 1439-1472. In: Fiches FAO d'Identification des Especes Pour les Besoins de la Peche. Mediterranee et Mer Noire, Volume II: Vertebres (W. Fischer, M. Schneider, and M. L. Bauchot, eds). Food and Agricultural Organization of the United Nations. 1529 pp.
- , Odell 1991
- Manatees and Dugongs. Facts on File Inc., New York. 192 pp.
- , Laws 1985
- Marine mammals, pp. 401-456. In: FAO Species Identification Sheets for Fishery Purposes. Southern Ocean, Volume II (W. Fischer and J. C. Hureau, eds). Food and Agricultural Organization of the United Nations. 471 pp.