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.

Xehetasun bibliografikoak
Erakunde egilea: United Nations Enviroment Programme (UNEP)
Formatua: Liburua
Hizkuntza:English
Argitaratua: Nairobi, Kenya UNEP 1992
Gaiak:
Environmental management.
Environmental policy.
United Nations Enviroment Programme (UNEP)