The global 500 : the roll of honour for environmental achievement .
- Nairobi, Kenya : United Nations Environment Programme
- v. ; 20 cm.
- Annual
Description based on: 1990; title from cover. Latest issue consulted: 1987-1992.
91-981068
Environmentalists -- Directories.
Environmental protection -- Societies, etc. -- Directories.
Environmental protection -- Periodicals -- Directories.