Cita APA (7th ed.)

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

Cita Chicago (17th ed.)

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

Cita MLA (9th ed.)

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