http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Giới thiệu khái quát về nghĩa vụ, căn cứ phát sinh nghĩa vụ, sự vận hành của nghĩa vụ.
Tăng Thanh Phương, Nguyễn Thị Ngọc Tuyền, Trần Thị Cẩm Nhung (Biên soạn)