00456nam a22001337a 450000500170000000600040001700700040002100800040002505000200002924501690004926000700021830000190028865000150030720170721102119.0000000000  aT58.6b.U5 1997  aUNEP survey of information systems related  to environmentally sound technologies :bcontribution to the 1997 session of the Commission on Sustainable Development /  aNairobi, Kenya :bUnited Nations Environmental Programme,cc1997.  a230 p. :bill.  aTechnology