Sutherland, W. J. (2010). Bird ecology and conservation: A handbook of techniques. Oxford.
Lua i Stíl Chicago (17ú heag.)Sutherland, William J. Bird Ecology and Conservation: A Handbook of Techniques. Oxford, 2010.
Lua MLA (8ú heag.)Sutherland, William J. Bird Ecology and Conservation: A Handbook of Techniques. Oxford, 2010.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.