Não informado. (1980). International Agricultural Development. Pharos Publishing Services.
Lua i Stíl Chicago (17ú heag.)Não informado. International Agricultural Development. Berks, Inglaterra: Pharos Publishing Services, 1980.
Lua MLA (8ú heag.)Não informado. International Agricultural Development. Pharos Publishing Services, 1980.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.
