Florida manatees. In: E. T. LaRoe, G. S. Farris, C. E. Puckett, P. D. Doran, & M. J. Mac (eds.), Our living resources: a report to the nation on the distribution, abundance, and health of U.S. plants, animals and ecosystems.

Washington, U.S. Dept. Interior, Natl. Biol. Service (xi + 530 pp.): 267-269. 1 tab. 2 figs.