Caring for the earth - United Nations Environment Programme; International Union for Conservation of Nature and Natural Resources; World Wide Fund for Nature (Gland, Switzerland : IUCN--the World Conservation Union : United Nations Environment Programme : World Wide Fund for Nature, 1991)
Accompanied by: Summary. 24 p. ; 27 cm.
Includes bibliographical references (p. 213-222).
Keywords: Human ecology; Sustainable development; Nature conservation