Sommer, M. How Cultural is Heritage?: Humanity's Black Sheep from Charles Darwin to Jack London / Marianne Sommer. Conference A Cultural History of Heredity III : 19th and early 20th centuries.(2005).
Lua i Stíl Chicago (17ú heag.)Sommer, Marianne. "How Cultural Is Heritage?: Humanity's Black Sheep from Charles Darwin to Jack London / Marianne Sommer." Conference A Cultural History of Heredity III : 19th and Early 20th Centuries.(2005) .
Lua MLA (8ú heag.)Sommer, Marianne. "How Cultural Is Heritage?: Humanity's Black Sheep from Charles Darwin to Jack London / Marianne Sommer." Conference A Cultural History of Heredity III : 19th and Early 20th Centuries.(2005), .
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.