Stiling, P. (1999). Ecology: Theories and applications. Prentice Hall.
Lua i Stíl Chicago (17ú heag.)Stiling, Peter. Ecology: Theories and Applications. Upper Saddle River, N.J: Prentice Hall, 1999.
Lua MLA (9ú heag.)Stiling, Peter. Ecology: Theories and Applications. Prentice Hall, 1999.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.