APA (7th ed.) Citation

Walker, P., & Wood, E. (2005). The continental shelf. Facts on file.

Chicago Style (17th ed.) Citation

Walker, Pam, and Elaine Wood. The Continental Shelf. New York: Facts on file, 2005.

MLA (9th ed.) Citation

Walker, Pam, and Elaine Wood. The Continental Shelf. Facts on file, 2005.