Caring for the earth :
- Gland, Switzerland : IUCN--the World Conservation Union : United Nations Environment Programme : World Wide Fund for Nature, c1991.
- iv, 228 p. ; 27 cm.
Accompanied by: Summary. 24 p. ; 27 cm.
2831700744
Human ecology.
Sustainable development.
Nature conservation.
Sustainable living.
304 IUC 1991 C149 Or.
Accompanied by: Summary. 24 p. ; 27 cm.
2831700744
Human ecology.
Sustainable development.
Nature conservation.
Sustainable living.
304 IUC 1991 C149 Or.