APA (7th ed.) Citation

Colombia & United States. (2013). Environmental cooperation: Agreement between the United States of America and Colombia, signed at Washington, April 19, 2013. United States Department of State.

Chicago Style (17th ed.) Citation

Colombia and United States. Environmental Cooperation: Agreement Between the United States of America and Colombia, Signed at Washington, April 19, 2013. [Washington, D.C.]: United States Department of State, 2013.

MLA (9th ed.) Citation

Colombia and United States. Environmental Cooperation: Agreement Between the United States of America and Colombia, Signed at Washington, April 19, 2013. United States Department of State, 2013.