ebrary, Inc, & Sorrell, L. A. (2010). Colombia: U.S. relations and issues. Nova Science Publishers.
芝加哥风格引文ebrary, Inc, 与 Landen A. Sorrell. Colombia: U.S. Relations and Issues. New York: Nova Science Publishers, 2010.
MLA引文ebrary, Inc, 与 Landen A. Sorrell. Colombia: U.S. Relations and Issues. Nova Science Publishers, 2010.
警告：这些引文格式不一定是100％准确.