http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Hoá học (Năm thứ hai MP-MP*-PSI, PSI*-PT-PT*) =
Chimie (2è année MP-MP*-PSI, PSI*-PT-PT*)
André Durupthy, Adré Casalot và Alain Jaubert; Từ Ngọc Ánh biên dịch