Renfrew. Life without Lead. University of California Press.
Lua i Stíl Chicago (17ú heag.)Renfrew. Life Without Lead. University of California Press.
Lua MLA (8ú heag.)Renfrew. Life Without Lead. University of California Press.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.