Butler, J. R. (1935). Why Jamestown was fortified.
Lua i Stíl Chicago (17ú heag.)Butler, James Rev. Why Jamestown Was Fortified. 1935.
Lua MLA (9ú heag.)Butler, James Rev. Why Jamestown Was Fortified. 1935.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.
