Hatfield, B. B. (2019). California sea otter (enhydra lutris nereis) census results, spring 2019. U.S. Department of the Interior, U.S. Geological Survey.
Chicago Style (17th ed.) CitationHatfield, Brian B. California Sea Otter (enhydra Lutris Nereis) Census Results, Spring 2019. Reston, Virginia: U.S. Department of the Interior, U.S. Geological Survey, 2019.
MLA (9th ed.) CitationHatfield, Brian B. California Sea Otter (enhydra Lutris Nereis) Census Results, Spring 2019. U.S. Department of the Interior, U.S. Geological Survey, 2019.
Warning: These citations may not always be 100% accurate.