Dyfyniad APA

Barnes, R., & Hughes, R. (1999). Introduction to marine ecology (3.). Blackwell Science Ltd.

Dyfyniad Arddull Chicago

Barnes, R.S.K, and R.N Hughes. Introduction to Marine Ecology. 3. London: Blackwell Science Ltd, 1999.

Dyfyniad MLA

Barnes, R.S.K, and R.N Hughes. Introduction to Marine Ecology. 3. Blackwell Science Ltd, 1999.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.