Não informado. (1996). Agriculture and environment for developing regions. Royal Tropical Institute.
Lua i Stíl Chicago (17ú heag.)Não informado. Agriculture and Environment for Developing Regions. Amsterdam: Royal Tropical Institute, 1996.
Lua MLA (8ú heag.)Não informado. Agriculture and Environment for Developing Regions. Royal Tropical Institute, 1996.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.