APA (7th ed.) Citation

Barnes, R. S., & Hughens, R. N. (1982). An introduction to marine ecology. Blackwell Scientific Publications.

Chicago Style (17th ed.) Citation

Barnes, R. S., and R. N. Hughens. An Introduction to Marine Ecology. Oxford: Blackwell Scientific Publications, 1982.

MLA (8th ed.) Citation

Barnes, R. S., and R. N. Hughens. An Introduction to Marine Ecology. Blackwell Scientific Publications, 1982.