On solid ground: science, technology, and integrated land management; panel on integrated land management On solid ground: science, technology, and integrated land management; panel on integrated land management

by 9495 IDRC, Ottawa, Ont. (Canadá), 18800 United Nations Conference on Trade and Development, Ginebra (Suiza)
Published 1997

Environmental impact of coffee production and processing in El Salvador and Costa Rica

by 117616 Segura Bonilla, O., 110380 Reynolds, J., 18800 United Nations Conference on Trade and Development, Ginebra (Suiza)
Published 1993