Παραπομπή APA

Gulland, M. (2007). conservation and sustainable use: A handbook of techniques.

Παραπομπή Chicago Style

Gulland, Milner. Conservation and Sustainable Use: A Handbook of Techniques. Oxford university press, Oxford, 2007.

Παραπομπή MLA

Gulland, Milner. Conservation and Sustainable Use: A Handbook of Techniques. 2007.