http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Gồm 3 chương. Ch.1: Thời gian và lịch pháp;Ch.2: Lịch và phép làm lịch trong tiến trình lịch sử; Ch.3: Lịch Việt Nam
Lịch sử; Niên đại học; Lịch pháp học