'In June 1992 over 100 heads of state met in Rio de Janeiro for this environmental "Summit"'
the Earth Summit
THE ENVIRONMENT: In June 1992 over 100 heads of state met in Rio de Janeiro for this environmental Summit
In June 1992 over 100 heads of state met in Rio de Janeiro for this environmental "Summit"
In June 1992 over 100 heads of state met in Rio de Janeiro for this environmental "Summit"
THE ENVIRONMENT
the Earth Summit
THE ENVIRONMENT