The green web a union for world conservation

Xehetasun bibliografikoak
Egile nagusia:	Holdgate, M. W.
Erakunde egilea:	International Union for Conservation of Nature and Natural Resources
Formatua:	Liburua
Hizkuntza:	English
Argitaratua:	London Earthscan c1999.
Gaiak:	IUCN > The World Conservation Union. International Union for Conservation of Nature and Natural Resources. Conservation of natural resources > International cooperation > History. Environmental management.