Não informado. (2002). Precision Agriculture. Kluwer Academic Publishers.
Lua i Stíl Chicago (17ú heag.)Não informado. Precision Agriculture. Dordrecht, Holanda: Kluwer Academic Publishers, 2002.
Lua MLA (8ú heag.)Não informado. Precision Agriculture. Kluwer Academic Publishers, 2002.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.