APA
United Nations Environment Programme, United Nations Environment Programme Industry and Environment Progra mme Activity Centre & United States Environmental Protection Agency Atmospheric Pollution Prevention Division. (1997). Reducing greenhouse gas emissions. France: United Nations Environment Programme.
Chicago
United Nations Environment Programme, United Nations Environment Programme Industry and Environment Progra mme Activity Centre and United States Environmental Protection Agency Atmospheric Pollution Prevention Division. 1997. Reducing greenhouse gas emissions. France: United Nations Environment Programme.
Harvard
United Nations Environment Programme, United Nations Environment Programme Industry and Environment Progra mme Activity Centre and United States Environmental Protection Agency Atmospheric Pollution Prevention Division. (1997). Reducing greenhouse gas emissions. France: United Nations Environment Programme.
MLA
United Nations Environment Programme, United Nations Environment Programme Industry and Environment Progra mme Activity Centre and United States Environmental Protection Agency Atmospheric Pollution Prevention Division. Reducing greenhouse gas emissions. France: United Nations Environment Programme. 1997.