00450nam a2200157 a 450000500170000010000060001711000410002324500300006426000340009430000180012869000460014696400190019299700120021199900170022395200520024020251203090647.0  d_  aUnited Nations Environment Programme  aEnvironmental data report  aOxfordbBasil Blackwellc1987  a344p.c22 cm.  aEnvironmental Programme in United Nations  bEngcdefg_  a26247 C  c15405d15405  00104070aPUbPUd1998-07-16l0o p26247yBK