Robinson, E. G. B. a. W. L. Wildlife ecology and management. Prentice-Hall.
Lua i Stíl Chicago (17ú heag.)Robinson, Eric G. Bolen and William L. Wildlife Ecology and Management. Prentice-Hall.
Lua MLA (8ú heag.)Robinson, Eric G. Bolen and William L. Wildlife Ecology and Management. Prentice-Hall.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.