To feed the earth : agro-ecology for sustainable development /

by Dover, Michael J.
Published 1987

Dams and the environment : considerations in World Bank projects /

by Dixon, John Alexander 1946, Dixon, John Alexander 1946, Le Moigne, Guy J.M 1932-
Published 1989

Sustaining tomorrow : a strategy for world conservation and development /

by Coolidge, Harold J.
Published 1984