APA استشهاد

Nelson - Smith, A. (1972). Oil Pollution and Marine Ecology. Elek Science.

استشهاد بنمط شيكاغو

Nelson - Smith, A. Oil Pollution and Marine Ecology. London: Elek Science, 1972.

MLA استشهاد

Nelson - Smith, A. Oil Pollution and Marine Ecology. Elek Science, 1972.