Handbook of marine mammals /
ed. by Sam H. Ridgway and Richard J. Harrison
- volúmenes
Contenido: 1. The walrus, sea lions, fur seals, and sea otter -- v. 2. Seals -- v. 3. The sirenians and baleen whales -- v. 4. River dolphins and the larger toothed whales -- v.5. The first book of dolphins -- v. 6. The second book of dolphins and the porpoises.