STILING, P. D. (1992). Introductory Ecology Peter D. Stiling. Prentice Hall.
Lua i Stíl Chicago (17ú heag.)STILING, Peter D. Introductory Ecology Peter D. Stiling. Prentice Hall, 1992.
Lua MLA (8ú heag.)STILING, Peter D. Introductory Ecology Peter D. Stiling. Prentice Hall, 1992.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.