UNEP survey of information systems related to environmentally sound technologies :
UNEP survey of information systems related to environmentally sound technologies : contribution to the 1997 session of the Commission on Sustainable Development /
- Nairobi, Kenya : United Nations Environmental Programme, c1997.
- 230 p. : ill.
Technology
T58.6 / .U5 1997
Technology
T58.6 / .U5 1997
