APA (7th ed.) Citation

Helfman, G. S., & Burgess, G. H. (2014). Sharks: The Animal Answer Guide. The Johns Hopkins University Press.

Chicago Style (17th ed.) Citation

Helfman, Gene S., and George H. Burgess. Sharks: The Animal Answer Guide. Baltimore: The Johns Hopkins University Press, 2014.

MLA (8th ed.) Citation

Helfman, Gene S., and George H. Burgess. Sharks: The Animal Answer Guide. The Johns Hopkins University Press, 2014.