Historical Studies in the Physical and Biological Sciences. University of California Press.
Lua i Stíl Chicago (17ú heag.)Historical Studies in the Physical and Biological Sciences. University of California Press.
Lua MLA (9ú heag.)Historical Studies in the Physical and Biological Sciences. University of California Press.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.