http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Một số vấn đề chung; hóa học của khí quyển; hóa học của địa quyển; hóa học của thủy quyển; hóa học tuần hoàn trong tự nhiên; TM tài liệu tham khảo tr. 260