00703nam a2200169Ia 4500082002100000100010800021245015800129260002800287300001500315500000500330690000600335904004800341952010300389964001700492921000900509999001500518  a309.301bUn58.HS  aUnited Nations. Economic and Social Affairs, Department of-.Housing, Building and Planning, Centre for-  aHuman settlementsbthe environmental challenge; a compendium of United Nations papers prepared for the Stockholm conference on the human environment 1972  aLondonbMacmillanc1975  axiv, 209p.  a  a   aHousing, Building and Planning, Centre for-  00104070aISIbISId1998-07-14l0o309.301 Un58.HSpDP11191r2019-02-14 00:00:00w2019-02-14yBK  abcdefg  a3622  c3622d3622