Methods and classifications

• City groups International Comparison Programme • National Statistical Systems

• Civil registration systems

• International economic and social    classifications • Population density and urbanization
• Country and area codes (M49) • International migration • Population and housing censuses
• Demographic and social surveys • Methodological publications in statistics • Public order and safety, offenders    and their victims
• Environmental accounting ... • National accounts • Statistics on international trade in
• Geographical names and information    systems.. • National and international data sources   and links • Time-use statistics (Allocation of  
   time and time use)
United Nations Statistics Division- Methods and classifications