http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Sách cung cấp kiến thức về cách giao tiếp trong xã hội: cách xưr thế nơi công cộng; cách cư xử trong gia đình; cách ăn mặc và trang điểm; cách sử dụng danh thiếp - thư từ - điện thoại; cách tổ chức tiệc tùng và khiêu vũ...