Cita APA (7th ed.)

Barnes, R. S. K., & Hughes, R. N. (1999). An introduction to marine ecology (3rd ed.). Blackwell Science.

Cita Chicago (17th ed.)

Barnes, R. S. K., i R. N. Hughes. An Introduction to Marine Ecology. 3rd ed. Oxford [England], Malden, MA, USA: Blackwell Science, 1999.

Cita MLA (9th ed.)

Barnes, R. S. K., i R. N. Hughes. An Introduction to Marine Ecology. 3rd ed. Blackwell Science, 1999.