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Lua i Stíl Chicago (17ú heag.)International Congress of Soil Science. Desertification Soils Policy: Symposia Papers III: Proceedings. New Delhi: Indian Agricultural Research Institute, 1982.
Lua MLA (9ú heag.)International Congress of Soil Science. Desertification Soils Policy: Symposia Papers III: Proceedings. Indian Agricultural Research Institute, 1982.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.