APA Citation

Ernst, C. H., & Barbour, R. W. 1. (1989). Turtles of the world. Washington: Smithsonian Institution.

Chicago Style Citation

Ernst, Carl H., and Róger W. 1919- Barbour. Turtles of the World. Washington: Smithsonian Institution, 1989.

MLA Citation

Ernst, Carl H., and Róger W. 1919- Barbour. Turtles of the World. Washington: Smithsonian Institution, 1989.

Warning: These citations may not always be 100% accurate.