APA استشهاد

Advisory committee on pollution of the sea. (1990). Marine pollution year book 1990. Pergamon.

استشهاد بنمط شيكاغو

Advisory committee on pollution of the sea. Marine Pollution Year Book 1990. Oxford: Pergamon, 1990.

MLA استشهاد

Advisory committee on pollution of the sea. Marine Pollution Year Book 1990. Pergamon, 1990.