http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Bảo vệ môi trường trong trồng trọt, chăn nuôi và nuôi trồng thủy sản
Nguyễn Hồng Minh, Nguyễn Thanh Phong, Trần Trung Việt biên soạn.