APA استشهاد

Cowell, E. B. (1971). Ecological effects of oil pollution on littoral communities. Applied sciences publisheres.

استشهاد بنمط شيكاغو

Cowell, E. B. Ecological Effects of Oil Pollution on Littoral Communities. Great britain: Applied sciences publisheres, 1971.

MLA استشهاد

Cowell, E. B. Ecological Effects of Oil Pollution on Littoral Communities. Applied sciences publisheres, 1971.