The population explosion
1990
Ehrlich, Paul R. |
Ehrlich, Anne H. |
Sustainable development
Green development : environment and sustainability in the Third World
1990
Adams, W. M. (William Mark) |
Seed of action : a report on the Bergen Process and the SEED Popular Forum, Bergen, May 12-16, 1990
1990
Hille, John |
Moss, Helga |
Poverty, environment and development
1991
Holmberg, Johan |
For the conservation of the Earth
1988
Martin, Vance |