Não informado. (1944). Better farming methods. [s.n.].
Lua i Stíl Chicago (17ú heag.)Não informado. Better Farming Methods. Saint Louis, Mo: [s.n.], 1944.
Lua MLA (8ú heag.)Não informado. Better Farming Methods. [s.n.], 1944.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.