Lewin, B. (2008). Genes IX (Ninth edition.). Jones and Bartlett Publishers.
Lua i Stíl Chicago (17ú heag.)Lewin, Benjamin. Genes IX. Ninth edition. Sudbury, Mass.: Jones and Bartlett Publishers, 2008.
Lua MLA (8ú heag.)Lewin, Benjamin. Genes IX. Ninth edition. Jones and Bartlett Publishers, 2008.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.