Dyfyniad APA
Clark, R. B., Frid, C., & Attrill, M. (2001). Marine pollution (5th ed.). Oxford University Press.
Dyfyniad Arddull Chicago
Clark, R. B., Chris Frid, and Martin Attrill. Marine Pollution. 5th ed. Oxford [England] ; New York: Oxford University Press, 2001.
Dyfyniad MLA
Clark, R. B., et al. Marine Pollution. 5th ed. Oxford University Press, 2001.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.