(2002). Countries of the world and their leaders yearbook, 2003. Gale Group.
芝加哥风格引文Countries of the World and Their Leaders Yearbook, 2003. Farmington Hills, Mich: Gale Group, 2002.
MLA引文Countries of the World and Their Leaders Yearbook, 2003. Gale Group, 2002.
警告：这些引文格式不一定是100％准确.