Stiling, P. (1999). Ecology: Theories and applications (3rd ed.). Prentice-Hall.
Lua i Stíl Chicago (17ú heag.)Stiling, Peter. Ecology: Theories and Applications. 3rd ed. Upper Saddle, NJ: Prentice-Hall, 1999.
Lua MLA (9ú heag.)Stiling, Peter. Ecology: Theories and Applications. 3rd ed. Prentice-Hall, 1999.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.