Caring for the earth.

Podrobná bibliografie
Korporace:	International Union for Conservation of Nature and Natural Resources, World Wide Fund for Nature, United Nations Environment Programme
Médium:	Kniha
Jazyk:	English
Vydáno:	Gland, Switzerland IUCN-the World Conservation Union ; United Nations Environment Programme : World Wide Fund for Nature c1991.
Témata:	Human ecology. Nature conservation. Sustainable development.