Alters, S. (1994). Human biology. Mosby.
Lua i Stíl Chicago (17ú heag.)Alters, Sandra. Human Biology. St. Louis, MO: Mosby, 1994.
Lua MLA (9ú heag.)Alters, Sandra. Human Biology. Mosby, 1994.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.