Lua APA (7ú heag.)
Smith, R. L. (1990). Ecology and field biology (4th ed.). Harper and Row.
Lua i Stíl Chicago (17ú heag.)
Smith, Robert Leo. Ecology and Field Biology. 4th ed. New York: Harper and Row, 1990.
Lua MLA (9ú heag.)
Smith, Robert Leo. Ecology and Field Biology. 4th ed. Harper and Row, 1990.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.