APA استشهاد

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

استشهاد بنمط شيكاغو

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

MLA استشهاد

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