http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Công cụ giao tiếp (sách tham khảo)
Nội dung sách trình bày khái quát, rõ ràng các nghi thức lễ tân, các nguyên tắc ứng xử cơ bản trong quan hệ giao tiếp giữa các quốc gia, các tổ chức chính trị, kinh tế, văn hoá và xã hội...
Louis Dussault ; Lê Hồng Phấn ...(dịch) ; Dương Văn Quảng, Nguyễn Quang Chiến (hiệu đính)