APA استشهاد

Nichols, C. R. (2010). Encyclopedia of marine science. Viva books.

استشهاد بنمط شيكاغو

Nichols, C Reid. Encyclopedia of Marine Science. New Delhi: Viva books, 2010.

MLA استشهاد

Nichols, C Reid. Encyclopedia of Marine Science. Viva books, 2010.