Não informado. (1946). Extension service news. Virginia Polytechnic Institute, Agricultural Extension Service.
Lua i Stíl Chicago (17ú heag.)Não informado. Extension Service News. Blacksburg, Va: Virginia Polytechnic Institute, Agricultural Extension Service, 1946.
Lua MLA (8ú heag.)Não informado. Extension Service News. Virginia Polytechnic Institute, Agricultural Extension Service, 1946.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.