http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Nội dung quyển sách phản ánh những thông tin bằng số về kinh tế xã hội Việt Nam trong năm 2005 cho cả nước và từng địa phương
Cộng hoà xã hội chủ nghĩa Việt Nam. Tổng Cục Thống Kê