Hyun L & Hyun, L. (2004). World peace index 2004: Assessing the state of peace in the nations of the world. world peace forum.
芝加哥风格引文Hyun L 与 L. Hyun. World Peace Index 2004: Assessing the State of Peace in the Nations of the World. Korea: world peace forum, 2004.
MLA引文Hyun L 与 L. Hyun. World Peace Index 2004: Assessing the State of Peace in the Nations of the World. world peace forum, 2004.
警告：这些引文格式不一定是100％准确.