APA استشهاد

Ngozi, P. H. (2013). Environmental toxicology. Random Exports.

استشهاد بنمط شيكاغو

Ngozi, Patrick H. Environmental Toxicology. New Delhi: Random Exports, 2013.

MLA استشهاد

Ngozi, Patrick H. Environmental Toxicology. Random Exports, 2013.