Hansen. In Defense of Farmers. University of Nebraska Press.
Lua i Stíl Chicago (17ú heag.)Hansen. In Defense of Farmers. University of Nebraska Press.
Lua MLA (8ú heag.)Hansen. In Defense of Farmers. University of Nebraska Press.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.