00543nam a2200109Ia 4500080001800000100001900018245012300037260003500160300001200195520020700207583001900414  a16.04.01 L665  aLevinson, Arik  aEfficient environmental regulation: case studies of urban air pollution: Los Angeles, Mexico City, Cubatao, and Ankara  bIBRDaWashington, D.C.USc1992  aii,56p.  aReviews the economic principles on which policy choices should be based and considers how they may be applied in the real world. Examines four cities that continue to face serious air polution problems.  c3/7/00kM2LMGR