Riedman, M., & Estes, J. A. (1990). The sea otter (Enhydra lutris): Behavior, ecology, and natural history. U.S. Dept. of the Interior, Fish and Wildlife Service.
Chicago Style (17th ed.) CitationRiedman, Marianne, and J. A. Estes. The Sea Otter (Enhydra Lutris): Behavior, Ecology, and Natural History. Washington, D.C.: U.S. Dept. of the Interior, Fish and Wildlife Service, 1990.
MLA (8th ed.) CitationRiedman, Marianne, and J. A. Estes. The Sea Otter (Enhydra Lutris): Behavior, Ecology, and Natural History. U.S. Dept. of the Interior, Fish and Wildlife Service, 1990.
Warning: These citations may not always be 100% accurate.