Harris, C. L. (1992). Concepts in zoology. HarperCollins.
Lua i Stíl Chicago (17ú heag.)Harris, C. Leon. Concepts in Zoology. New York, NY: HarperCollins, 1992.
Lua MLA (9ú heag.)Harris, C. Leon. Concepts in Zoology. HarperCollins, 1992.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.