1
2
Published 1986
“...International Institute for Environment and Development....”
3
Published 1986
“...International Institute for Environment and Development....”
4
Published 1986
“...WORLD RESOURCES INSTITUTE, INTERNATIONAL INSTITUTE FOR ENVIRONMENT AND DEVELOPMENT....”
5
Published 1976
“...International Institute for Environment and Development....”
6
7
Published 1988
“...International Institute for Environment and Development....”