APA استشهاد

Hawksworth, D. L., & Bull, A. T. (2006). Human exploitation and biodiversity conservation. Springer.

استشهاد بنمط شيكاغو

Hawksworth, David L., و Alan T. Bull. Human Exploitation and Biodiversity Conservation. Dordrecht: Springer, 2006.

MLA استشهاد

Hawksworth, David L., و Alan T. Bull. Human Exploitation and Biodiversity Conservation. Springer, 2006.