American Society of Agronomy\nCrop Science Society of America\nSoil Science Society of America. (1972). Journal of Environmental Quality. American Society of Agronomy.
Lua i Stíl Chicago (17ú heag.)American Society of Agronomy\nCrop Science Society of America\nSoil Science Society of America. Journal of Environmental Quality. Madison, Wis: American Society of Agronomy, 1972.
Lua MLA (8ú heag.)American Society of Agronomy\nCrop Science Society of America\nSoil Science Society of America. Journal of Environmental Quality. American Society of Agronomy, 1972.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.