APA (7th ed.) Citation

Clark, J. R. (1998). Coastal seas: The conservation challenge. Blackwell Science.

Chicago Style (17th ed.) Citation

Clark, John R. Coastal Seas: The Conservation Challenge. Oxford ; Malden, MA: Blackwell Science, 1998.

MLA (9th ed.) Citation

Clark, John R. Coastal Seas: The Conservation Challenge. Blackwell Science, 1998.