Duncan, R. S. (2013). Southern wonder: Alabama's surprising biodiversity. The University of Alabama Press.
Lua i Stíl Chicago (17ú heag.)Duncan, R. Scot. Southern Wonder: Alabama's Surprising Biodiversity. Tuscaloosa: The University of Alabama Press, 2013.
Lua MLA (9ú heag.)Duncan, R. Scot. Southern Wonder: Alabama's Surprising Biodiversity. The University of Alabama Press, 2013.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.