Clark, R. B., Attrill, M., & Frid, C. (1997). Marine pollution (4th ed.). Clarendon Press.
Chicago Style aipamenaClark, R. B., Martin Attrill, and Chris Frid. Marine Pollution. 4th ed. Oxford: Clarendon Press, 1997.
MLA aipamenaClark, R. B., et al. Marine Pollution. 4th ed. Clarendon Press, 1997.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.