http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Pháp lệnh phát hành công trái xây dựng tổ quốc và văn bản hướng dẫn thi hành
VIỆT NAM ( Cộng hòa Xã hội chủ nghĩa )