- Reeves 1992
- The Sierra Club Handbook of Seals and Sirenians. Sierra Club Books, San Francisco. 359 pp.
- , Odell 1991
- Manatees and Dugongs. Facts on File Inc., New York. 192 pp.
- Ridgeway, 1989
- Handbook of Marine Mammals, Volume 4: River Dolphins and the Larger Toothed Whales. Academic Press, London. 442 pp.
- Ridgeway, 1981a
- Handbook of Marine Mammals, Volume 1: The Walrus, Sea Lions, Fur Seals and Sea Otter. Academic Press, London. 235 pp.
- Ridgeway, 1981b
- Handbook of Marine Mammals, Volume 2: Seals. Academic Press, London. 359 pp.
- Ridgeway, 1985
- Handbook of Marine Mammals, Volume 3: The Sirenians and Baleen Whales. Academic Press, London. 362 pp.
- Riedman 1990b
- Sea Otters. Monterey Bay Aquarium, Monterey, California. 80 pp.
- Riedman 1990a
- The Pinnipeds: Seals, Sea Lions, and Walruses. University of California Press, Berkeley. 439 pp.