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World Health Organization. Division of Environmental Health ,  Western Pacific Regional Centre for the Promotion of Environmental Planning and Applied Studies ,  Global Environment Monitoring System ,  WHO Collaborating Centre for Air Pollution Monitoring ,  [Air quality monitoring and control / prepared for Western Pacific Regional Centre for the Promotion of Environmental Planning and Applied Studies (PEPAS), Kuala Lumpur, Malaysia by WHO Collaborating Centre for Air Pollution Monitoring, Brisbane, Australia]

Global Environment Monitoring System ,  International Council of Scientific Unions. Monitoring and Assessment Research Centre ,  [Urban air pollution, 1973-1980] ,  La Contaminaci'on atmosférica urbana, 1973-1980 / publicaci'on preparada en colaboraci'on con el Centro de Estudios de Vigilancia y Evaluaci'on, Chelsea College, Universidad de Londres, Londres, Inglaterra

World Health Organization. Division of Environmental Health ,  Western Pacific Regional Centre for the Promotion of Environmental Planning and Applied Studies ,  Global Environment Monitoring System ,  WHO Collaborating Centre for Air Pollution Monitoring ,  [Air quality monitoring and control / prepared for Western Pacific Regional Centre for the Promotion of Environmental Planning and Applied Studies (PEPAS), Kuala Lumpur, Malaysia by WHO Collaborating Centre for Air Pollution Monitoring, Brisbane, Australia]

Global Environment Monitoring System ,  International Council of Scientific Unions. Monitoring and Assessment Research Centre ,  [Urban air pollution, 1973-1980] ,  La Contaminaci'on atmosférica urbana, 1973-1980 / publicaci'on preparada en colaboraci'on con el Centro de Estudios de Vigilancia y Evaluaci'on, Chelsea College, Universidad de Londres, Londres, Inglaterra