00506nam a2200157Ia 450000100060000000800410000602000180004704000130006508200250007811000340010324501170013726000580025430000110031254600070032365000180033051265140502s9999    xx            000 0 und d  a9789696030126  cPK-LaUMT  aG 634.9095491bPAK-W  aPakistan Engineering Congress  aWorld environment-day June-2012 on the theme of green economy-does it inlude you?cPakistan Engineering Congress  aLahore,Pakistan:bPakistan Engineering Council,c2012  a122 p.  aEN  aGreen economy