The state of the environment (1972-1992): saving our planet challenges and hopes.

The state of the environment (1972-1992): saving our planet challenges and hopes.

书目详细资料
企业作者: United Nations Enviroment Programme (UNEP)
格式: 图书
语言:English
出版: Nairobi, Kenya UNEP 1992
主题:
Environmental management.
Environmental policy.
United Nations Enviroment Programme (UNEP)