Nierenberg, W. A. (1995). Encyclopedia of environmental biology. Academic Press.
Lua i Stíl Chicago (17ú heag.)Nierenberg, William A. Encyclopedia of Environmental Biology. San Diego: Academic Press, 1995.
Lua MLA (9ú heag.)Nierenberg, William A. Encyclopedia of Environmental Biology. Academic Press, 1995.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.