006890000a22001810004500003000900000005001700009110010900026245015100135020001800286264004900304490004000353300000900393041000800402650001800410650003200428650001700460700003000477PH-MaWHO20241108112334.0 aWHO Expert Committee on Urban Air Pollution with Particular Reference to Motor Vehicles (1968 : Geneva). aUrban air pollution with particular reference to motor vehicles : report of a WHO Expert committee [meeting held in Geneva from 2 to 8 July 1968]. a92-4-120410-9 aGeneva : bWorld Health Organization,c1969. a(WHO technical report series ; 410) a53p. aeng aAir pollution aVehicle emissionsxAnalysis aUrban health aWorld Health Organization