APA استشهاد

Nicol, J. A. C. (1960). Biology of marine animals. Pitman&Sons.

استشهاد بنمط شيكاغو

Nicol, J. A. Colin. Biology of Marine Animals. London: Pitman&Sons, 1960.

MLA استشهاد

Nicol, J. A. Colin. Biology of Marine Animals. Pitman&Sons, 1960.