Não informado. (1982). Biological Agriculture & Horticulture. A B Academic Publishers.
Lua i Stíl Chicago (17ú heag.)Não informado. Biological Agriculture & Horticulture. Oxon, Inglaterra: A B Academic Publishers, 1982.
Lua MLA (8ú heag.)Não informado. Biological Agriculture & Horticulture. A B Academic Publishers, 1982.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.