APA (7th ed.) Zitazioa

ebrary, Inc, & Sorrell, L. A. (2010). Colombia: U.S. relations and issues. Nova Science Publishers.

Chicago Style (17th ed.) Zitazioa

ebrary, Inc, eta Landen A. Sorrell. Colombia: U.S. Relations and Issues. New York: Nova Science Publishers, 2010.

MLA (9th ed.) Zitazioa

ebrary, Inc, eta Landen A. Sorrell. Colombia: U.S. Relations and Issues. Nova Science Publishers, 2010.