http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Bốn bệnh đỏ của lợn và biện pháp phòng trị
Phan Thanh Phượng, Trần Thị Hạnh và Phạm Công Hoạt