APA (7th ed.) Citation

Barnes, R., & Hughes, R. (1990). An introduction to marine ecology (2nd ed., [repr.].). Blackwell.

Chicago Style (17th ed.) Citation

Barnes, R.S.K, and R.N Hughes. An Introduction to Marine Ecology. 2nd ed., [repr.]. Oxford [etc.]: Blackwell, 1990.

MLA (9th ed.) Citation

Barnes, R.S.K, and R.N Hughes. An Introduction to Marine Ecology. 2nd ed., [repr.]. Blackwell, 1990.