http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
NV Ngôn ngữ văn chương; NV Văn học phương Tây
Lê Bá Hán, Trần Đình Sử, Nguyễn Khắc Phi (ch.b)