Russell-Hunter, W. D. A biology of higher invertebrates.
Lua i Stíl Chicago (17ú heag.)Russell-Hunter, W. D. A Biology of Higher Invertebrates.
Lua MLA (9ú heag.)Russell-Hunter, W. D. A Biology of Higher Invertebrates.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.