Não informado. Agricultural research results. Science and Education Administration.
Lua i Stíl Chicago (17ú heag.)Não informado. Agricultural Research Results. Berkeley, Calif: Science and Education Administration.
Lua MLA (8ú heag.)Não informado. Agricultural Research Results. Science and Education Administration.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.