Beckett, B. S. Illustrated human and social biology.
Lua i Stíl Chicago (17ú heag.)Beckett, B. S. Illustrated Human and Social Biology.
Lua MLA (8ú heag.)Beckett, B. S. Illustrated Human and Social Biology.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.